Проблем с BSOD

[ruger]

Излиза когато си пускам или рестартирам компютъра:
c000021a(Fatal error system)
The Windows Logon Process system process terminated
f 0x00000000(0x00000000 0x00000000)
The system has been shut down.

[terawatt]

http://support.microsoft.com/default.aspx?scid=kb;en-us;156669