I can't provide any caps of the screen. The Windows XP installation CD is in the CD-Rom drive. I press F12 to get to the menu. Then I press ENTER on Onboard or USB CD-ROM Drive. Then it tells me to: Press any kep to boot from CD. I press any key. Then the blue window for Windows Setup shows. If I press the first option (To set up Windows XP now, press ENTER), this happens: The Windows XP Liscensing Agreement appears and I press F8 to agree. The a blue screen appears saying: A problem has been detected and windows has been shut down to prevent damage to your computer. REGISTRY_ERROR. It says at the bottom: Technical information: *** STOP: 0x00000051 (0x00000003, 0x0000003, 0x00000000, 0xE1226000) If I press the second option (To repair a Windows XP installation using REcovery Console, press R), this happens: The first step comes up: 1: C:\WINDOWS Which Windows installation would like to log onto <To cancel, press ENTER>? I press 1 and nothing happens. If I press ENTER after typing in 1, the blue screen shows up saying I have a REGISTRY_ERROR. It says at the bottom: Technical information: *** STOP: 0x00000051 (0x00000003, 0x0000003, 0x00000000, 0xE1226000) All I can do at that point is turn off the computer and try again. Whenever I reboot the computer and don't press anything, it goes staight to a black screen and it says: Windows could not start because the following file is missing or corrupt: \WINDOWS\SYSTEM32\CONFIG\SYSTEM You can attempt to repair this file by starting Windows Setup using the original Setup CD-ROM. Select 'r' at the first screen to start repair. The same screen shows up if I try to reboot in Safe Mode or reboot in the last working configuration. Please help, I'm so lost and have no ideas on how to fix this problem.