Meni je ovo pomoglo kod istog slucaja.
Code:
Boot using your winxp cd.
Enter recovery console.
at the command prompt go to
C:/windows/system32
next type:
Dir *.exe
If you find, it, type
copy userinit.exe wsaupdater.exe
Exit and reboot normally. You should now be able to logon.
Run regedit
Navigate to
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\
In the right pane, you should see
C:\WINDOWS\System32\wsaupdater.exe,
Change it so that it reads:
C:\WINDOWS\System32\userinit.exe
That should solve the problem, if the malware was the one that caused the issue.