Showing posts with label computer. Show all posts
Showing posts with label computer. Show all posts

Saturday, February 1, 2014

How to Check your Graphics Memory in windows 8

Right click on your Desktop Screen


GOTO Screen Resolution


Now click Advance Settings


















And there is all the information all you need




Tuesday, January 28, 2014

How to upgrade windows 8 to 8.1

First of all the up-gradation of windows 8 to windows 8.1 is totally free of cost, Here is a tutorial on How to upgrade windows 8 to 8.1 through Windows Store with screen shots.


1:  Make a backup of your files.

2:  Make sure that you don't have something important in C Drive.

3:  Go to the Start screen, and tap or click the store icon














4:  In the Store, tap or click the Windows 8.1 or Windows RT 8.1 update.

5:  Tap or click Download.

6:  The update will download and install in the background while you use your PC to do other things. The installer will check to make sure you have enough disk space, that your apps and devices will work with Windows 8.1 or Windows RT 8.1, and that you have all the required updates.
In some cases, the installer might find something you need to take care of before you can continue installing the update. If so, you'll see a message telling you what you need to do.

Note

  • If the installation is interrupted for any reason, you can restart the update from where you left off by going back to the Store and downloading the update again.

7:  Restart
After the update is downloaded and the first phase of the installation is complete (which could take between 15 minutes and a few hours, depending on your system and your connection speed), you'll see a message telling you that your PC needs to restart. It will give you 15 minutes to finish what you’re working on, save your work, and close your apps, and then it will restart your PC for you. Or you can restart it yourself.



Important

  • If you leave your PC before it's ready to restart, be sure to save your work and close any desktop apps you're using to make sure you don't lose anything when it restarts automatically. Your PC might need to restart more than once, depending on how it’s set up, and whether additional updates are needed.
  • Restarting will take longer than usual—from 20 minutes to about an hour—while the update is applied. During this time, you won't be able to use your PC.

8:  Choose your settings

License terms

After your PC finishes restarting, you'll be presented with the Microsoft software license terms. Review the terms, and then tap or click I accept to continue. If you don't accept the terms, this cancels the installation of Windows 8.1 or Windows RT 8.1, and your PC will roll back to Windows 8 or Windows RT.

Express settings

You'll see a list of recommended settings, called express settings. To accept these settings and continue, tap or click Use express settings. You can change any of these settings later, after you finish setting up. If you'd like to change some of these settings now, tap or click Customize.


For more info, tap or click Learn more about express settings. To learn about how these settings affect your privacy, tap or click Privacy statement.

Congrats your OS has successfully been updated to windows 8.1 from windows 8.

After this there will be a sign in page



9:  Welcome to the new Windows
The new Start screen will appear.


Monday, January 27, 2014

System Requirements for Windows 8 and Windows 8.1

First and the most basic Requirement to run windows 8 or Windows 8.1 is to have a PC. If you got that then i am pretty much sure that you can also run these awesome OS.


Windows 8

If you want to run Windows 8 on your PC, here's what you should have:
  • Processor: 1 gigahertz (GHz) or faster with support for PAE, NX, and SSE2
  • RAM: 1 gigabyte (GB) (32-bit) or 2 GB (64-bit)
  • Hard disk space: 16 GB (32-bit) or 20 GB (64-bit)
  • Graphics card: Microsoft DirectX 9 graphics device with WDDM driver





Windows 8.1

If you want to run Windows 8.1 on your PC, here's what you should have:
  • Processor: 1 gigahertz (GHz) or faster with support for PAE, NX, and SSE2
  • RAM: 1 gigabyte (GB) (32-bit) or 2 GB (64-bit)
  • Hard disk space: 16 GB (32-bit) or 20 GB (64-bit)
  • Graphics card: Microsoft DirectX 9 graphics device with WDDM driver

Sunday, January 5, 2014

How to Activate Windows 8 in 4 Easy Steps with Screen Shots

Windows 8 Activation Instructions


After installing Windows 8, you must follow these instructions in order to activate your windows 8 for full functionality.
NOTE: You will need the license key given to you when you downloaded Windows 8 from the software page.
  1. Move your mouse to the top right corner and click Search.
  2. Type cmd in the Search Box then click on Command Prompt (this appears on the left side, under Apps).
  3. Type slui 3 (there is a space between slui and 3) in the Command Prompt window and hit Enter.
  4. Type the product key given to you when you downloaded Windows 8 from the software site. Click Activate.
  5. This completes the installation of Windows 8.
If you are having trouble activating Windows 8 comment :)

Thursday, November 8, 2012

Dell Touch pad Problems

As recently i encountered  a problem in my dell touch pad of inspiron 5110, as the touch pad buttons

 did not worked and after some time scroll was also not working,

If you also encountered that kind of problem then you have to do is uninstall the dell touch pad drivers

and reinstall the new and updated drivers

and you are good to go :)

Enjoy

Comments are welcomed :)




Thursday, October 18, 2012

Really Great and Best Features of windows 7 that help us in our daily life so much

Windows Management. By now, you’ve probably seen that Windows 7 does a lot to make window management easier: you can “dock” a window to the left or right half of the screen by simply dragging it to the edge; similarly, you can drag the window to the top of the screen to maximize it, and double-click the window top / bottom border to maximize it vertically with the same horizontal width. What you might not know is that all these actions are also available with keyboard shortcuts:
  • Win+Left Arrow and Win+Right Arrow dock;
  • Win+Up Arrow and Win+Down Arrow maximizes and restores / minimizes;
  • Win+Shift+Up Arrow and Win+Shift+Down Arrow maximizes and restores the vertical size.
This side-by-side docking feature is particularly invaluable on widescreen monitors – it makes the old Windows way of shift-clicking on two items in the taskbar and then using the context menu to arrange them feel really painful.

Display Projection. Had enough of messing around with weird and wonderful OEM display driver utilities to get your notebook display onto an external projector? In that case, you’ll be pleased to know that projection is really quick and simple with Windows 7. Just hit Win+P, 
Use the arrow keys (or keep hitting Win+P) to switch to “clone”, “extend” or “external only” display settings. You can also access the application as displayswitch.exe. 
If you want broader control over presentation settings, you can also press Win+X to open the Windows Mobility Center, which allows you to turn on a presentation “mode” that switches IM clients to do not disturb, disables screensavers, sets a neutral wallpaper etc. (Note that this feature is also available in Windows Vista.) 

Cut Out The Clutter. Working on a document in a window and want to get rid of all the extraneous background noise? Simply hit Win+Home to minimize all the non-active background windows, keeping the window you’re using in its current position. When you’re ready, simply press Win+Home again to restore the background windows to their original locations. 

Multi-Monitor Windows Management. The earlier tip on window management showed how you can dock windows within a monitor. One refinement of those shortcuts is that you can useWin+Shift+Left Arrow and Win+Shift+Right Arrow to move windows from one monitor to another – keeping them in the same relative location to the monitor’s top-left origin. 

Command Junkies Only. One of the most popular power toys in Windows XP was “Open Command Prompt Here”, which enabled you to use the graphical shell to browse around the file system and then use the context menu to open a command prompt at the current working directory. In Windows 7 (and in Windows Vista, incidentally – although not many folk knew about it), you can simply hold the Shift key down while selecting the context menu to get exactly the same effect. If the current working directory is a network location, it will automatically map a drive letter for you.

It’s a Global Village. If you’ve tried to change your desktop wallpaper, you’ve probably noticed that there’s a set of wallpapers there that match the locale you selected when you installed Windows. (If you picked US, you’ll see beautiful views of Crater Lake in Oregon, the Arches National Park, a beach in Hawai’i, etc.) In fact, there are several sets of themed wallpapers installed based on the language you choose, but the others are in a hidden directory. If you’re feeling in an international mood, simply browse to C:\Windows\Globalization\MCT and you’ll see a series of pictures under the Wallpaper directory for each country. Just double-click on the theme file in the Theme directory to display a rotation through all the pictures for that country. (Note that some countries contain a generic set of placeholder art for now.) 

The Black Box Recorder. Every developer wishes there was a way that an end-users could quickly and simply record a repro for the problem that they’re running into that is unique to their machine. Windows 7 comes to the rescue! Part of the in-built diagnostic tools that we use internally to send feedback on the product, the Problem Steps Recorder provides a simple screen capture tool that enables you to record a series of actions. Once you hit “record”, it tracks your mouse and keyboard and captures screenshots with any comments you choose to associate alongside them. Once you stop recording, it saves the whole thing to a ZIP file, containing an HTML-based “slide show” of the steps. It’s a really neat little tool and I can’t wait for it to become ubiquitous on every desktop! The program is called psr.exe; you can also search for it from Control Panel under “Record steps to reproduce a problem”. 

The Font of All Knowledge. Long Zheng will be happy: we’ve got rid of the Add Fonts dialog that has served Windows faithfully for the last twenty years. (Of course, for most of that time, it’s been deprecated – the easy way to install a set of fonts has simply been to drag them into the Fonts folder via Control Panel.) But now font installation is really easy – we’ve added an “Install” button to the font viewer applet that takes care of the installation process: 
There are lots of other new features built into Windows 7 that will satisfy those of a typographic bent, incidentally – grouping multiple weights together, the ability to hide fonts based on regional settings, a new text rendering engine built into the DirectWrite API, and support in the Font common file dialog for more than the four “standard” weights.

Gabriola. As well as the other typographic features mentioned above, Windows 7 includes Gabriola, an elaborate display type from the Tiro Typeworks foundry that takes advantage of OpenType Layout to provide a variety of stylistic sets, flourishes and ornamentation ligatures: 

Who Stole My Browser? If you feel like Internet Explorer is taking a long time to load your page, it’s worth taking a look at the add-ons you have installed. One of the more helpful little additions in Internet Explorer 8 is instrumentation for add-on initialization, allowing you to quickly see whether you’re sitting around waiting for plug-ins to load. Just click Tools / Manage Add-ons, and then scroll right in the list view to see the load time. On my machine, I noticed that the Research add-on that Office 2007 installs was a particular culprit, and since I never use it, it was simple to disable it from the same dialog box. 

Rearranging the Furniture. Unless you’ve seen it demonstrated, you may not know that the icons in the new taskbar aren’t fixed in-place. You can reorder them to suit your needs, whether they’re pinned shortcuts or running applications. What’s particularly nice is that once they’re reordered, you can start a new instance of any of the first five icons by pressing Win+1, Win+2, Win+3 etc. I love that I can quickly fire up a Notepad2 instance on my machine with a simple Win+5 keystroke, for instance. 
What’s less well-known is that you can similarly drag the system tray icons around to rearrange their order, or move them in and out of the hidden icon list. It’s an easy way to customize your system to show the things you want, where you want them. 

Installing from a USB Memory Stick. My wife has a Samsung NC10 netbook (very nice machine, by the way), and we wanted to install Windows 7 Beta on this machine to replace the pre-installed Windows XP environment. Like most netbook-class devices, this machine has no built-in media drive, and nor did I have an external USB DVD drive available to boot off. The solution: I took a spare 4GB USB 2.0 thumbdrive, reformatted it as FAT32, and simply copied the contents of the Windows 7 Beta ISO image to the memory stick using xcopy e:\ f:\ /e /f (where e: was the DVD drive and f: was the removable drive location). Not only was it easy to boot and install from the thumbdrive, it was also blindingly fast: quicker than the corresponding DVD install on my desktop machine. 

It’s also worth noting in passing that Windows 7 is far better suited to a netbook than any previous operating system: it has a much lighter hard drive and memory footprint than Windows Vista, while also being able to optimize for solid state drives (for example, it switches off disk defragmentation since random read access is as fast as sequential read access, and it handles file deletions differently to minimize wear on the solid state drive). 

I Want My Quick Launch Toolbar Back! You might have noticed that the old faithful Quick Launch toolbar is not only disabled by default in Windows 7, it’s actually missing from the list of toolbars. As is probably obvious, the concept of having a set of pinned shortcut icons is now integrated directly into the new taskbar. Based on early user interface testing, we think that the vast majority of users out there (i.e. not the kind of folk who read this blog, with the exception of my mother) will be quite happy with the new model, but if you’re after the retro behavior, you’ll be pleased to know that the old shortcuts are all still there. To re-enable it, do the following:
  • Right-click the taskbar, choose Toolbars / New Toolbar
  • In the folder selection dialog, enter the following string and hit OK:
    %userprofile%\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch
  • Turn off the “lock the taskbar” setting, and right-click on the divider. Make sure that “Show text” and “Show title” are disabled and the view is set to “small icons”.
  • Use the dividers to rearrange the toolbar ordering to choice, and then lock the taskbar again.
If it’s not obvious by the semi-tortuous steps above, it’s worth noting that this isn’t something we’re exactly desperate for folks to re-enable, but it’s there if you really need it for some reason. Incidentally, we’d love you to really try the new model first and give us feedback on why you felt the new taskbar didn’t suit your needs.

It’s a Drag. Much play has been made of the Jump Lists feature in Windows 7, allowing applications like Windows Live Messenger to offer an easy task-based entry point. Jump lists replace the default right-click context menu in the new taskbar; another way to access them (particularly useful if you’re running Windows 7 on a one-button MacBook) is by left-clicking and dragging up in a kind of “swooshing” motion. This was designed for touch-enabled devices like the beautiful HP TouchSmart all-in-one PC, where the same gesture applies. 
Another place where you can “swoosh” (not an official Microsoft term) is the IE 8 address bar, where the downward drag gesture brings up an expanded list containing the browser history, favorites and similar entries. The slower you drag, the cooler the animation! 

Standards Support. Every review of Windows 7 that I’ve seen has noted the revamped WordPad and Paint applets that add an Office-like ribbon to expose their functionality. Few, however, have noticed one small but hopefully appreciated feature: WordPad can now read and write both the Word 2007-compatible Office Open XML file format but also the OpenDocument specification that IBM and Sun have been advocating: 

Windows Vista-Style Taskbar. I wasn’t initially a fan of the Windows 7 taskbar when it was first introduced in early Windows 7 builds, but as the design was refined in the run up to the beta, I was converted and now actively prefer the new look, particularly when I’ve got lots of windows open simultaneously. For those who really would prefer a look more reminiscent of Windows Vista, the good news is that it’s easy to customize the look of the taskbar to more closely mirror the old version: 
To achieve this look, right-click on the taskbar and choose the properties dialog. Select the “small icons” checkbox and under the “taskbar buttons” setting, choose “combine when taskbar is full”. It’s not pixel-perfect in accuracy, but it’s close from a functionality point of view. 

Peeking at the Desktop. While we’re on the taskbar, it’s worth noting a few subtleties. You’ve probably seen the small rectangle in the bottom right hand corner: this is the feature we call “Aero Peek”, which enables you to see any gadgets or icons you’ve got on your desktop. I wanted to note that there’s a keyboard shortcut that does the same thing – just press Win+Space. 

Running with Elevated Rights. Want to quickly launch a taskbar-docked application as an administrator? It’s easy – hold down Ctrl+Shift while you click on the icon, and you’ll immediately launch it with full administrative rights (assuming your account has the necessary permissions, of course!) 

One More of the Same, Please. I’ve seen a few folk caught out by this one. If you’ve already got an application open on your desktop (for example, a command prompt window), and you want to open a second instance of the same application, you don’t have to go back to the start menu. You can simply hold down the Shift key while clicking on the taskbar icon, and it will open a new instance of the application rather than switching to the existing application. For a keyboard-free shortcut, you can middle-click with the third mouse button to do the same thing. (This trick assumes that your application supports multiple running instances, naturally.) 

Specialized Windows Switching. Another feature that power users will love is the ability to do a kind of “Alt+Tab” switching across windows that belong to just one application. For example, if you’ve got five Outlook message windows open along with ten other windows, you can quickly tab through just the Outlook windows by holding down the Ctrl key while you repeatedly click on the single Outlook icon. This will toggle through each of the five Outlook windows in order, and is way faster than opening Alt+Tab and trying to figure out which of the tiny thumbnail images relates to the specific message you’re trying to find. 

Walking Through the Taskbar. Another “secret” Windows shortcut: press Win+T to move the focus to the taskbar. Once you’re there, you can use the arrow keys to select a particular window or group and then hit Enter to launch or activate it. As ever, you can cancel out of this mode by hitting the Esc key. I don’t know for sure, but I presume this shortcut was introduced for those with accessibility needs. However, it’s equally valuable to power users – another good reason for all developers to care about ensuring their code is accessible. 

 The Widescreen Tip. Almost every display sold these days is widescreen, whether you’re buying a notebook computer or a monitor. While it might be great for watching DVDs, when you’re trying to get work done it can sometimes feel like you’re a little squeezed for vertical space. 
As a result, the first thing I do when I set up any new computer is to dock the taskbar to the left hand side of the screen. I can understand why we don’t set this by default – can you imagine the complaints from enterprise IT departments who have to retrain all their staff – but there’s no reason why you as a power user should have to suffer from default settings introduced when the average screen resolution was 800x600. 

In the past, Windows did an indifferent job of supporting “side dockers” like myself. Sure, you could move the taskbar, but it felt like an afterthought – the gradients would be wrong, the Start menu had a few idiosyncrasies, and you’d feel like something of a second-class citizen. The Windows 7 taskbar feels almost as if it was designed with vertical mode as the default – the icons work well on the side of the screen, shortcuts like the Win+T trick mentioned previously automatically switch from left/right arrows to up/down arrows, and so on. The net effect is that you wind up with a much better proportioned working space. 

Try it – in particular, if you’ve got a netbook computer that has a 1024x600 display, you’ll immediately appreciate the extra space for browsing the Internet. For the first day you’ll feel a little out of sync, but then I guarantee you’ll become an enthusiastic convert! 

Pin Your Favorite Folders. If you’re always working in the same four or five folders, you can quickly pin them with the Explorer icon on the taskbar. Hold the right-click button down and drag the folder to the taskbar, and it will be automatically pinned in the Explorer Jump List. 

Starting Explorer from “My Computer”. If you spend more time manipulating files outside of the documents folders than inside, you might want to change the default starting directory for Windows Explorer so that it opens at the Computer node: 
To do this, navigate to Windows Explorer in the Start Menu (it’s in the Accessories folder). Then edit the properties and change the target to read: 
%SystemRoot%\explorer.exe /root,::{20D04FE0-3AEA-1069-A2D8-08002B30309D} 
If you want the change to affect the icon on the taskbar, you’ll need to unpin and repin it to the taskbar so that the new shortcut takes affect. It’s worth noting that Win+E will continue to display the documents library as the default view: I’ve not found a way to change this from the shell at this time. 

ClearType Text Tuning and Display Color Calibration. If you want to tune up your display for image or text display, we have the tools included out of the box. It’s amazing what a difference this makes: by slightly darkening the color of the text and adjusting the gamma back a little, my laptop display looks much crisper than it did before. You’d adjust the brightness and contrast settings on that fancy 42” HDTV you’ve just bought: why wouldn’t you do the same for the computer displays that you stare at every day?  

ISO Burning. Easy to miss if you’re not looking for it: you can double-click on any DVD or CD .ISO image and you’ll see a helpful little applet that will enable you to burn the image to a blank disc. No more grappling for shareware utilities of questionable parentage! 

Windows Movie Maker. Windows 7 doesn’t include a movie editing tool – it’s been moved to the Windows Live Essentials package, along with Photo Gallery, Mail and Messenger. Unfortunately, Windows Live Movie Maker is currently still in an early beta that is missing most of the old feature set (we’re reworking the application), and so you might be feeling a little bereft of options. It goes without saying that we intend to have a better solution by the time we ship Windows 7, but in the meantime the best solution for us early adopters is to use Windows Movie Maker 2.6 (which is essentially the same as the most recent update to the Windows XP version). It’s missing the full set of effects and transitions from the Windows Vista version, and doesn’t support HD editing, but it’s pretty functional for the typical usage scenario of home movie editing. 

Hiding the Windows Live Messenger Icon. Hopefully your first act after Windows 7 setup completed was to download and install the Windows Live Essentials suite of applications (if not, then you’re missing out on a significant part of the Windows experience). If you’re a heavy user of IM, you may love the way that Windows Live Messenger is front and central on the taskbar, where you can easily change status and quickly send an IM to someone: 
On the other hand, you may prefer to keep Windows Live Messenger in the system tray where it’s been for previous releases. If so, you can fool the application into the old style of behavior. To do this, close Windows Live Messenger, edit the shortcut properties and set the application to run in Windows Vista compatibility mode. Bingo! 

Enjoy The Fish. I’m surprised that not many people seem to have caught the subtle joke with the Siamese fighting fish that is part of the default background, so I’ll do my part at keeping the secret hidden. Check out wikipedia for a clue. 

When All Else Fails… There are always those times when you’re in a really bad spot – you can’t boot up properly, and what you really want is something you can quickly use to get at a command prompt so you can properly troubleshoot. Windows 7 now includes the ability to create a system repair disc, which is essentially a CD-bootable version of Windows that just includes the command prompt and a suite of system tools. Just type “system repair disc” in the Start Menu search box, and you’ll be led to the utility.

Tuesday, October 16, 2012

Installing Software in GNU/Linux

For the benefit of people new to Linux, I have written a generic explanation of howto install software in Linux. Note that some software may have specific installation procedures, this HOWTO is not a substitute for reading the official installation documentation 

This HOWTO covers the following topics:

Command-line process:
  • Compiling and Installing software from source
  • Installing RPM's using the Redhat Package Manager
  • Installing using Debian's apt-get
  • Installing mandrake things
  • Installing with fedora / yum
  • Installing slackware packages
  • Installing software using Gentoo EMerge
  • Installing binary files (.BIN/.SH)
  • Installing .package Files (AutoPackage)

Graphical (GUI) process:
  • Using Synaptic (Fedora, Ubuntu)
  • Using YaST2 (SuSE, openSuSE)
If you have just installed GNU/Linux and would like to know how to install software on your new OS, I would recommend you read the section specifically for your GNU/Linux Distribution. 

Enjoy :)

Comments are welcomed :)

Sunday, October 14, 2012

Make Google CHrome and FireFox password Protected

This is a really simple trick, As we just have to use extensions that have been provided to us by google and by mozilla, So its perfectly safe

Procedure is as follows

Chrome :

First you have to download the following Addon

Goto => Tools => extensions => simple startup password => options => Set Password

And Congrats your password is all set now :)

Firefox :

In order to setup password to firefox you have to use following extension

Download it from here

Congrats your password can be set this way to firefox

Enjoy :)

Comments are appreciated :)


Friday, October 12, 2012

10 main reasons why PCs crash so U must Know....

10 reasons why PCs crash U must Know
Fatal error: the system has become unstable or is busy," it says.
"Enter to return to Windows or press Control-Alt-Delete to restart your computer. If you do this you will lose any unsaved information in all open applications."

You have just been struck by the Blue Screen of Death. Anyone who uses Mcft Windows will be familiar with this. What can you do? More importantly, how can you prevent it happening?

1 Hardware conflict

The number one reason why Windows crashes is hardware conflict. Each hardware device communicates to other devices through an interrupt request channel (IRQ). These are supposed to be unique for each device.

For example, a printer usually connects internally on IRQ 7. The keyboard usually uses IRQ 1 and the floppy disk drive IRQ 6. Each device will try to hog a single IRQ for itself.

If there are a lot of devices, or if they are not installed properly, two of them may end up sharing the same IRQ number. When the user tries to use both devices at the same time, a crash can happen. The way to check if your computer has a hardware conflict is through the following route:

* Start-Settings-Control Panel-System-Device Manager.

Often if a device has a problem a yellow '!' appears next to its description in the Device Manager. Highlight Computer (in the Device Manager) and press Properties to see the IRQ numbers used by your computer. If the IRQ number appears twice, two devices may be using it.

Sometimes a device might share an IRQ with something described as 'IRQ holder for PCI steering'. This can be ignored. The best way to fix this problem is to remove the problem device and reinstall it.

Sometimes you may have to find more recent drivers on the internet to make the device function properly. A good resource is http://www.driverguide.com. If the device is a soundcard, or a modem, it can often be fixed by moving it to a different slot on the motherboard (be careful about opening your computer, as you may void the warranty).

When working inside a computer you should switch it off, unplug the mains lead and touch an unpainted metal surface to discharge any static electricity.

To be fair to Mcft, the problem with IRQ numbers is not of its making. It is a legacy problem going back to the first PC designs using the IBM 8086 chip. Initially there were only eight IRQs. Today there are 16 IRQs in a PC. It is easy to run out of them. There are plans to increase the number of IRQs in future designs.

2 Bad Ram

Ram (random-access memory) problems might bring on the blue screen of death with a message saying Fatal Exception Error. A fatal error indicates a serious hardware problem. Sometimes it may mean a part is damaged and will need replacing.

But a fatal error caused by Ram might be caused by a mismatch of chips. For example, mixing 70-nanosecond (70ns) Ram with 60ns Ram will usually force the computer to run all the Ram at the slower speed. This will often crash the machine if the Ram is overworked.

One way around this problem is to enter the BIOS settings and increase the wait state of the Ram. This can make it more stable. Another way to troubleshoot a suspected Ram problem is to rearrange the Ram chips on the motherboard, or take some of them out. Then try to repeat the circumstances that caused the crash. When handling Ram try not to touch the gold connections, as they can be easily damaged.

Parity error messages also refer to Ram. Modern Ram chips are either parity (ECC) or non parity (non-ECC). It is best not to mix the two types, as this can be a cause of trouble.

EMM386 error messages refer to memory problems but may not be connected to bad Ram. This may be due to free memory problems often linked to old Dos-based programmes.

3 BIOS settings

Every motherboard is supplied with a range of chipset settings that are decided in the factory. A common way to access these settings is to press the F2 or delete button during the first few seconds of a boot-up.

Once inside the BIOS, great care should be taken. It is a good idea to write down on a piece of paper all the settings that appear on the screen. That way, if you change something and the computer becomes more unstable, you will know what settings to revert to.

A common BIOS error concerns the CAS latency. This refers to the Ram. Older EDO (extended data out) Ram has a CAS latency of 3. Newer SDRam has a CAS latency of 2. Setting the wrong figure can cause the Ram to lock up and freeze the computer's display.

Mcft Windows is better at allocating IRQ numbers than any BIOS. If possible set the IRQ numbers to Auto in the BIOS. This will allow Windows to allocate the IRQ numbers (make sure the BIOS setting for Plug and Play OS is switched to 'yes' to allow Windows to do this.).

4 Hard disk drives

After a few weeks, the information on a hard disk drive starts to become piecemeal or fragmented. It is a good idea to defragment the hard disk every week or so, to prevent the disk from causing a screen freeze. Go to

* Start-Programs-Accessories-System Tools-Disk Defragmenter

This will start the procedure. You will be unable to write data to the hard drive (to save it) while the disk is defragmenting, so it is a good idea to schedule the procedure for a period of inactivity using the Task Scheduler.

The Task Scheduler should be one of the small icons on the bottom right of the Windows opening page (the desktop).

Some lockups and screen freezes caused by hard disk problems can be solved by reducing the read-ahead optimisation. This can be adjusted by going to

* Start-Settings-Control Panel-System Icon-Performance-File System-Hard Disk.

Hard disks will slow down and crash if they are too full. Do some housekeeping on your hard drive every few months and free some space on it. Open the Windows folder on the C drive and find the Temporary Internet Files folder. Deleting the contents (not the folder) can free a lot of space.

Empty the Recycle Bin every week to free more space. Hard disk drives should be scanned every week for errors or bad sectors. Go to

* Start-Programs-Accessories-System Tools-ScanDisk

Otherwise assign the Task Scheduler to perform this operation at night when the computer is not in use.

5 Fatal OE exceptions and VXD errors

Fatal OE exception errors and VXD errors are often caused by video card problems.

These can often be resolved easily by reducing the resolution of the video display. Go to

* Start-Settings-Control Panel-Display-Settings

Here you should slide the screen area bar to the left. Take a look at the colour settings on the left of that window. For most desktops, high colour 16-bit depth is adequate.

If the screen freezes or you experience system lockups it might be due to the video card. Make sure it does not have a hardware conflict. Go to

* Start-Settings-Control Panel-System-Device Manager

Here, select the + beside Display Adapter. A line of text describing your video card should appear. Select it (make it blue) and press properties. Then select Resources and select each line in the window. Look for a message that says No Conflicts.

If you have video card hardware conflict, you will see it here. Be careful at this point and make a note of everything you do in case you make things worse.

The way to resolve a hardware conflict is to uncheck the Use Automatic Settings box and hit the Change Settings button. You are searching for a setting that will display a No Conflicts message.

Another useful way to resolve video problems is to go to

* Start-Settings-Control Panel-System-Performance-Graphics

Here you should move the Hardware Acceleration slider to the left. As ever, the most common cause of problems relating to graphics cards is old or faulty drivers (a driver is a small piece of software used by a computer to communicate with a device).

Look up your video card's manufacturer on the internet and search for the most recent drivers for it.

6 Viruses

Often the first sign of a virus infection is instability. Some viruses erase the boot sector of a hard drive, making it impossible to start. This is why it is a good idea to create a Windows start-up disk. Go to

* Start-Settings-Control Panel-Add/Remove Programs

Here, look for the Start Up Disk tab. Virus protection requires constant vigilance.

A virus scanner requires a list of virus signatures in order to be able to identify viruses. These signatures are stored in a DAT file. DAT files should be updated weekly from the website of your antivirus software manufacturer.

An excellent antivirus programme is McAfee VirusScan by Network Associates ( http://www.nai.com). Another is Norton AntiVirus 2000, made by Symantec ( http://www.symantec.com).

7 Printers

The action of sending a document to print creates a bigger file, often called a postscript file.

Printers have only a small amount of memory, called a buffer. This can be easily overloaded. Printing a document also uses a considerable amount of CPU power. This will also slow down the computer's performance.

If the printer is trying to print unusual characters, these might not be recognised, and can crash the computer. Sometimes printers will not recover from a crash because of confusion in the buffer. A good way to clear the buffer is to unplug the printer for ten seconds. Booting up from a powerless state, also called a cold boot, will restore the printer's default settings and you may be able to carry on.

8 Software

A common cause of computer crash is faulty or badly-installed software. Often the problem can be cured by uninstalling the software and then reinstalling it. Use Norton Uninstall or Uninstall Shield to remove an application from your system properly. This will also remove references to the programme in the System Registry and leaves the way clear for a completely fresh copy.

The System Registry can be corrupted by old references to obsolete software that you thought was uninstalled. Use Reg Cleaner by Jouni Vuorio to clean up the System Registry and remove obsolete entries. It works on Windows 95, Windows 98, Windows 98 SE (Second Edition), Windows Millennium Edition (ME), NT4 and Windows 2000.

Read the instructions and use it carefully so you don't do permanent damage to the Registry. If the Registry is damaged you will have to reinstall your operating system. Reg Cleaner can be obtained fromhttp://www.jv16.org

Often a Windows problem can be resolved by entering Safe Mode. This can be done during start-up. When you see the message "Starting Windows" press F4. This should take you into Safe Mode.

Safe Mode loads a minimum of drivers. It allows you to find and fix problems that prevent Windows from loading properly.

Sometimes installing Windows is difficult because of unsuitable BIOS settings. If you keep getting SUWIN error messages (Windows setup) during the Windows installation, then try entering the BIOS and disabling the CPU internal cache. Try to disable the Level 2 (L2) cache if that doesn't work.

Remember to restore all the BIOS settings back to their former settings following installation.

9 Overheating

Central processing units (CPUs) are usually equipped with fans to keep them cool. If the fan fails or if the CPU gets old it may start to overheat and generate a particular kind of error called a kernel error. This is a common problem in chips that have been overclocked to operate at higher speeds than they are supposed to.

One remedy is to get a bigger better fan and install it on top of the CPU. Specialist cooling fans/heatsinks are available from http://www.computernerd.com or http://www.coolit.com

CPU problems can often be fixed by disabling the CPU internal cache in the BIOS. This will make the machine run more slowly, but it should also be more stable.

10 Power supply problems

With all the new construction going on around the country the steady supply of electricity has become disrupted. A power surge or spike can crash a computer as easily as a power cut.

If this has become a nuisance for you then consider buying a uninterrupted power supply (UPS). This will give you a clean power supply when there is electricity, and it will give you a few minutes to perform a controlled shutdown in case of a power cut.

It is a good investment if your data are critical, because a power cut will cause any unsaved data to be lost.






Enjoy :)
Feel free to comment :)

How to Permanently, "Nuke", Erase Data Off a Hard Drive



How to Permanently, "Nuke", Erase Data Off a Hard Drive


As in order to save ourselves we sometimes have to format our hard drives or USB ,but it can still be recovered by simple software that are on internet, in order to remove data permanently we have to use some softwares,so if u want to remove data permanently follow these simple steps and the software that are being used here for data deletion purposes are open source and are free of cost.

but do remember that in case of any illegal work,forensic department can still recover data from your hard drives,but in case of normal people just cant recover your deleted files through this method.
Boot and Nuke Method

This will allow reuse of your hard drive, but theoretically your data is still recoverable by forensic analysis by well-financed governments.Darik's Boot and Nuke, as "an open-source boot disk utility (read: works on nearly any computer) that supports a wide variety of disk wiping methods and operates from inside the computer's RAM, allowing it to scrub the disk thoroughly at a remove."

1) Download Darik's Boot and Nuke (DBAN) here. Two different versions (one for PCs and newer Macs, and the other for older Macs) allow DBAN to work on nearly every computer made within the last ten years.

2) Burn DBAN to a CD. Since DBAN is an ISO file, you will need to use burning software that can burn ISO files (also known as CD images). Simply burning the file onto a CD in the ordinary way is not sufficient. If you don't see the "ISOLINUX" folder on the burned CD, it won't work and your hard drive will not be erased.

Windows 7 comes with the correct software to burn ISO files; simply double-click the file. If you are using an older version of Windows, download a program such as BurnCDCC if you don't have suitable CD burning software.

3) Boot from the CD. Leave the CD in while you restart the computer you are erasing the hard drive with. If it doesn't boot up from the CD automatically, you will need to adjust the boot order in the BIOS. On an Apple Mac, you may need to hold down the "C" key while the computer starts up.

4) Delete the data. You will need to select the disk to delete the data from (make sure it is the right one because you can't recover the data after it has been destroyed). You can choose how many times you want it to be overwritten and deleted. The default, 3-pass overwrite is acceptable. Generally overwriting with "one pass of random data" is sufficient to prevent casual recovery of data.




Physical Destruction Method

This destroys the hard drive, rendering it completely unusable (and therefore unreadable). You can also view more tips in How to Destroy a Hard Drive. Physical destruction is a good option for an archaic drive for which you don't have the necessary interface on a computer to connect it to, or if the drive will not reliably boot for you to run a software-based erase. It is also for those who want their data to be unrecoverable even under forensic analysis by governments.

1) Remove the old hard drive you want to destroy from the computer or external enclosure (such as the outer case around a USB hard drive).

2) Unscrew all the screws holding the top on. You will need the T-9 sized wrench for most hard drives. Sometimes there's an air seal. You will need to remove this.

3) Destroy the platters. Once you get the top off you will see two or three stacked, silver disks (called platters). Put scratches on the surface of the platters with the Torx wrench. Now start smashing it with the hammer. Do this outside on a hard surface (such as concrete). Be sure to wear safety glasses to protect against flying debris. Glass platters (found on newer drives) will shatter. If you have a large hammer (a 10 lb sledge for instance): you can forgo opening the drive - a few good hits with a big hammer can split open the metal casing and mangle the platters, even on old full height 5.25" drives with metal (rather than glass) platters.




Selective File Wipe Methods

1)

  • Microsoft SDelete: Secure delete files, directories or sanitize free space
  • Wipe File: Overwrites the specific disk space occupied by the file you'd like erased.
  • DeleteOnClick: Has a "Securely Delete" option to engage a Department of Defense 5220.22-M overwrite on the files.
  • Eraser: Can be scheduled to perform regular overwrites of empty disc space to catch orphan files


Enjoy :)

Feel free to comment ...................

Thursday, October 11, 2012

Keyboard Shortcuts

As we all use computer daily,and most of the time we use mouse to do most of the work,but in order to increase our working speed we must use the keyboard shortcuts so that we should not be using mouse so that our work is more delayed,as i use a lot of keyboard shortcuts daily.

So i am giving here a huge list of keyboard shortcuts,and it almost covers all of the shortcuts of the keyboard,i hope so these shortcuts will be help full to you in your daily life to work more efficiently.



windows key + R = Run menu

This is usually followed by:

cmd = Command Prompt

iexplore + "web address" = Internet Explorer


compmgmt.msc = Computer Management


dhcpmgmt.msc = DHCP Management


dnsmgmt.msc = DNS Management


services.msc = Services


eventvwr = Event Viewer


dsa.msc = Active Directory Users and Computers


dssite.msc = Active Directory Sites and Services


Windows key + E = Explorer

ALT + Tab = Switch between windows

ALT, Space, X = Maximize window

CTRL + Shift + Esc = Task Manager

Windows key + Break = System properties

Windows key + F = Search

Windows key + D = Hide/Display all windows

CTRL + C = copy

CTRL + X = cut

CTRL + V = paste

Also don't forget about the "Right-click" key next to the right Windows key on your keyboard. Using the arrows and that key can get just about anything done once you've opened up any program.


Keyboard Shortcuts

[Alt] and [Esc] Switch between running applications

[Alt] and letter Select menu item by underlined letter

[Ctrl] and [Esc] Open Program Menu

[Ctrl] and [F4] Close active document or group windows (does not work with some applications)

[Alt] and [F4] Quit active application or close current window

[Alt] and [-] Open Control menu for active document

Ctrl] Lft., Rt. arrow Move cursor forward or back one word

Ctrl] Up, Down arrow Move cursor forward or back one paragraph

[F1] Open Help for active application

Windows+M Minimize all open windows

Shift+Windows+M Undo minimize all open windows

Windows+F1 Open Windows Help

Windows+Tab Cycle through the Taskbar buttons

Windows+Break Open the System Properties dialog box



acessability shortcuts:

Right SHIFT for eight seconds........ Switch FilterKeys on and off.

Left ALT +left SHIFT +PRINT SCREEN....... Switch High Contrast on and off.

Left ALT +left SHIFT +NUM LOCK....... Switch MouseKeys on and off.

SHIFT....... five times Switch StickyKeys on and off.

NUM LOCK...... for five seconds Switch ToggleKeys on and off.

explorer shortcuts

END....... Display the bottom of the active window.

HOME....... Display the top of the active window.

NUM LOCK+ASTERISK....... on numeric keypad (*) Display all subfolders under the selected folder.

NUM LOCK+PLUS SIGN....... on numeric keypad (+) Display the contents of the selected folder.

NUM LOCK+MINUS SIGN....... on numeric keypad (-) Collapse the selected folder.

LEFT ARROW...... Collapse current selection if it's expanded, or select parent folder.

RIGHT ARROW....... Display current selection if it's collapsed, or select first subfolder.




Type the following commands in your Run Box (Windows Key + R) or Start Run

devmgmt.msc = Device Manager


msinfo32 = System Information


cleanmgr = Disk Cleanup


ntbackup = Backup or Restore Wizard (Windows Backup Utility)


mmc = Microsoft Management Console


excel = Microsoft Excel (If Installed)


msaccess = Microsoft Access (If Installed)


powerpnt = Microsoft PowerPoint (If Installed)


winword = Microsoft Word (If Installed)


frontpg = Microsoft FrontPage (If Installed)


notepad = Notepad


wordpad = WordPad


calc = Calculator


msmsgs = Windows Messenger


mspaint = Microsoft Paint


wmplayer = Windows Media Player


rstrui = System Restore


netscp6 = Netscape 6.x


netscp = Netscape 7.x


netscape = Netscape 4.x


waol = America Online


control = Opens the Control Panel


control printers = Opens the Printers Dialog


internetbrowser :

type in u're adress "google", then press [Right CTRL] and [Enter]
add www. and .com to word and go to it


For Windows XP:

Copy. CTRL+C


Cut. CTRL+X


Paste. CTRL+V


Undo. CTRL+Z


Delete. DELETE


Delete selected item permanently without placing the item in the Recycle Bin. SHIFT+DELETE


Copy selected item. CTRL while dragging an item
Create shortcut to selected item. CTRL+SHIFT while dragging an item


Rename selected item. F2
Move the insertion point to the beginning of the next word. CTRL+RIGHT ARROW


Move the insertion point to the beginning of the previous word. CTRL+LEFT ARROW


Move the insertion point to the beginning of the next paragraph. CTRL+DOWN ARROW


Move the insertion point to the beginning of the previous paragraph. CTRL+UP ARROW


Highlight a block of text. CTRL+SHIFT with any of the arrow keys


Select more than one item in a window or on the desktop, or select text within a document. SHIFT with any of the arrow keys
Select all. CTRL+A


Search for a file or folder. F3


View properties for the selected item. ALT+ENTER


Close the active item, or quit the active program. ALT+F4


Opens the shortcut menu for the active window. ALT+SPACEBAR


Close the active document in programs that allow you to have multiple documents open simultaneously. CTRL+F4


Switch between open items. ALT+TAB


Cycle through items in the order they were opened. ALT+ESC


Cycle through screen elements in a window or on the desktop. F6


Display the Address bar list in My Computer or Windows Explorer. F4


Display the shortcut menu for the selected item. SHIFT+F10


Display the System menu for the active window. ALT+SPACEBAR


Display the Start menu. CTRL+ESC


Display the corresponding menu. ALT+Underlined letter in a menu name


Carry out the corresponding command. Underlined letter in a command name on an open menu
Activate the menu bar in the active program. F10


Open the next menu to the right, or open a submenu. RIGHT ARROW


Open the next menu to the left, or close a submenu. LEFT ARROW


Refresh the active window. F5


View the folder one level up in My Computer or Windows Explorer. BACKSPACE


Cancel the current task. ESC


SHIFT when you insert a CD into the CD-ROM drive Prevent the CD from automatically playing.

Use these keyboard shortcuts for dialog boxes:

To Press


Move forward through tabs. CTRL+TAB


Move backward through tabs. CTRL+SHIFT+TAB


Move forward through options. TAB


Move backward through options. SHIFT+TAB


Carry out the corresponding command or select the corresponding option. ALT+Underlined letter
Carry out the command for the active option or button.

 ENTER

Select or clear the check box if the active option is a check box. SPACEBAR


Select a button if the active option is a group of option buttons. Arrow keys


Display Help. F1


Display the items in the active list. F4


Open a folder one level up if a folder is selected in the Save As or Open dialog box. BACKSPACE

If you have a Microsoft Natural Keyboard, or any other compatible keyboard that includes the Windows logo key and the Application key , you can use these keyboard shortcuts:


Display or hide the Start menu. WIN Key


Display the System Properties dialog box. WIN Key+BREAK


Show the desktop. WIN Key+D


Minimize all windows. WIN Key+M


Restores minimized windows. WIN Key+Shift+M


Open My Computer. WIN Key+E


Search for a file or folder. WIN Key+F


Search for computers. CTRL+WIN Key+F


Display Windows Help. WIN Key+F1


Lock your computer if you are connected to a network domain, or switch users if you are not connected to a network domain. WIN Key+ L


Open the Run dialog box. WIN Key+R


Open Utility Manager. WIN Key+U

accessibility keyboard shortcuts:

Switch FilterKeys on and off. Right SHIFT for eight seconds


Switch High Contrast on and off. Left ALT+left SHIFT+PRINT SCREEN


Switch MouseKeys on and off. Left ALT +left SHIFT +NUM LOCK


Switch StickyKeys on and off. SHIFT five times


Switch ToggleKeys on and off. NUM LOCK for five seconds


Open Utility Manager. WIN Key+U

shortcuts you can use with Windows Explorer:


Display the bottom of the active window. END


Display the top of the active window. HOME


Display all subfolders under the selected folder. NUM LOCK+ASTERISK on numeric keypad (*)


Display the contents of the selected folder. NUM LOCK+PLUS SIGN on numeric keypad (+)


Collapse the selected folder. NUM LOCK+MINUS SIGN on numeric keypad (-)


Collapse current selection if it's expanded, or select parent folder. LEFT ARROW
Display current selection if it's collapsed, or select first subfolder. RIGHT ARROW