When you get a virus or something goes terribly wrong you need to reformat. This clears everything off your computer, I'm talking everything. Now there are a few ways to do this depending on what your set up is.

Windows 95, 98, NT, 2k, ME, XP with recovery disk - Insert the recovery disk and follow the instructions.

Windows 95, 98 with installation disk - Go to control panel, Add/Remove programs then select the startup tab, and create a boot disk. Restart in MS-DOS mode. It should say "C:\Windows>" key in "cd\" and you will see "C:\>". Now key in "format C:", then key in "y" at the prompt. Wait for it to scrap your drive then when it restarts, have the boot disk in the A drive. Select "Boot from CD-ROM" and make sure the Windows Installation disk is in the drive and install it from there.

Windows NT, 2k, ME, XP, with installation disk - Get your friend's recovery disk, pop it in and follow the instructions. While it's reformatting switch the recovery disk with the installation disk. Then install it from there.

If you find this information inaccurate or have questions post in the forums