System manufacturer and model?
Why attempt a repair install of XP? What was the perceived problem which might be solved by a repair effort?
What onscreen error messages?
This is a Dell XPS 400 purchased January 2006. It was installed with Windows XP Pro since upated to SP3. Recently I was having startup and bug issues. One day my computer would not turn on at all. I recognized that I needed a power supply replaced, which I did. The hard drive still spins fine.
When the computer restarted, however, it appeared there must have been a bad block because Windows seemed to be missing critical system files as was crippled. I ran through all the spyware/malware steps on MajorGeeks and was told my logs were clean. I then posted to the software forum and it was recommended I do a system install after backing up my files, which I did.
My system now works again, including networking, but I am getting these frustrating startup messages. If I ignore them, the system seems to work OK. If I press "OK" then the system halts and stalls. The error message is "The instruction at 0x00000000 referenced memory at 0x00000000 The memory could not be read?" I was informed this is probably a bad registry or DLL entry so I ran and corrected with CCleaner.
Still no success after restart. The error message does not appear when I startup in Safe Mode or Safe Mode with Networking.