Answer Line: How to Reinstall Windows Without Losing Your Data

Windows 2000 and XP CDs

Boot your computer with your Windows CD-ROM inserted. When you get the 'Press any key to boot from CD' message, do so. (If you don't see that message before Windows starts, restart Windows, press the key you're prompted to enter for your PC Setup program, and change the boot order so your CD drive is first.)

At the 'Welcome to Setup' screen, press Enter. The R (repair) option takes you to the Recovery Module, which is useful if Windows won't boot, but it's no help with a reinstallation. Soon you'll be told that there's already a Windows installation on the computer. Press r for a repair reinstall or Esc to begin a complete, destructive one. For a complete restore, select your C: partition and press Enter. When you get the warning that says an operating system is on that partition, press c. When you are asked your partition preference, select Leave the current file system intact (no changes). When you're told that a Windows folder (or Winnt folder for Windows 2000) already exists, press l ('ell') to delete it and create a new one. Follow the series of prompts. When the installation program asks for your name, enter temp.

Once the installation is complete, your system will reboot into Windows, and you'll be logged on as user Temp. If the screen is difficult to read, reinstall your graphics card driver.

If you are reinstalling Windows XP, skip to "For Both Windows XP and 2000."

If you're reinstalling Windows 2000, log off as Temp and back on as Administrator. Now log off and on again, this time as Temp. Open Windows Explorer and navigate to C:\Documents and Settings. One of the subfolders will be named Administrator. Another will be named something like Administrator.computername.

Select Start, Programs, Accessories, Command Prompt. Type cd "\documents and settings" and press Enter. Then type xcopy administrator\*.* administrator.computername /s /h /r /c, replacing computername with the last part of that folder's name (after "Administrator.") in Documents and Settings. Now press Enter, and when you're asked about overwriting files or folders, press a for All.

If you have any users on the old installation besides Administrator, continue with the "For Both Windows XP and 2000" section. Otherwise, open Windows Explorer and make sure your data files are where they belong. Then go to Control Panel's Users and Passwords applet and delete the user Temp before skipping to "Finishing the Job."