
Press a key when prompted to boot from the CD.Īt the "Welcome to Setup" menu, press "Enter" to set up Windows XP. Again, the repair installation should only affect the Windows installation on the computer. If you haven't made a backup of the important files on the computer yet, this is another opportunity to. Insert the Windows XP CD and boot up the computer. You can remove the Windows XP CD from the drive before restarting, though you may want to keep it close by if Windows refuses to start normally.Ĭhoose "Start Windows Normally" if the Advanced Startup Options menu appears. Type "exit" and press "Enter" to restart the computer.

Type the following in the Command Prompt window:Ĭopy c:\windows\repair\system c:\windows\system32\config\system copy c:\windows\repair\software c:\windows\system32\config\software copy c:\windows\repair\sam c:\windows\system32\config\sam copy c:\windows\repair\security c:\windows\system32\config\security copy c:\windows\repair\default c:\windows\system32\config\defaultĬhoose "Yes" when asked to overwrite the existing files to restore the Windows Registry. Md tmp copy c:\windows\system32\config\system c:\windows\tmp\system.bak copy c:\windows\system32\config\software c:\windows\tmp\software.bak copy c:\windows\system32\config\sam c:\windows\tmp\sam.bak copy c:\windows\system32\config\security c:\windows\tmp\security.bak copy c:\windows\system32\config\default c:\windows\tmp\default.bak Type the following lines in the Command Prompt window that comes up to create a backup of the existing broken registry: Press "R" to start the Recovery Console from the "Welcome to Setup" screen.Ĭhoose the Windows XP installation and enter the Administrator password when prompted or press "Enter" if there isn't an Administrator password. In the BIOS, change the boot order to have the CD-ROM boot before the hard drive.

If the computer tries to boot directly into Windows, you need to enter the BIOS, usually by pressing "F2" or the "Del" key when the computer first starts up. When prompted, press a key to boot from the CD. The process shouldn't affect any of the installed files, but having a backup is always a safer idea.

Make a backup of important files if possible.
