When I booted XP SP2, Windows said it could not find this file or it was corrupt and Windows would not load. So I reinstalled XP. Someone in another forum said this could be due to Xabot worm and I've scanned Windows using Runalyzer, Malwarebytes and Hijackthis and couldn't find any of the autorun entries (entries named "win32dll" and pointing to "C:\WINDOWS\config32.exe) or files (c:\AUTOEXEC.BAT, c:\config.dll, $WINDIR>\config32.exe) associated with this worm. What else could be the problem?