Windows hides file extensions for recognized file types. File extensions are three letters or numbers after name of file like resume.doc. File extensions tell Windows what application to open file with.Windows hides file extensions for recognized file types. File extensions are three letters or numbers after name of file like resume.doc. File extensions tell Windows what application to open file with.

If you're not part of domain environment and one day find that you're unable to access the Windows Task manager due to the error message below, there's a good chance you've been infected with a virus. Here's how to fix it.

This is really a very nice video it shows How Windows XP can Look Like Windows 7

If for some reason you want to prevent the use of USB drives (memory sticks) on your Windows computer then follow the simple steps outlined below:

Although upgrade to Windows 7 will be smooth, problem
may arise if you are upgrading from Windows XP to Windows 7 directly
because the hardware of your computer or laptop may not support Windows
7. So you need to upgrade your PC before you install Windows 7 on it.