ISASS.EXE TERMINATION ERROR

I am having a problem trying to boot up Windows 2000. It gets to the part where it is ‘Preparing network connections’ and hangs there for a while. It then comes up with a dialogue box telling me that the system will be shutdown by NTAUTHORITY\SYSTEM. The following comes:
C:\WINNT\System32\Isass.exe terminated unexpectedly with status code – 1073741571. The system will shutdown and restart.

total geek had the same problem, what did you do to fix it.