RE: "STOP: c000021a (Fatal System Error)" Error!
I had the same problem.
It was so bad that I was not able to boot into windows at all.
Attempts to so a system restore from the Vista disc failed citing unknown errors.
After changing the bios setting (ASUS M2N SLI MB) to not restart on error, I did the following.
1. Booted from VISTA CD, allowed it to fail restore and selected "command prompt"
2. CD \Windows\System32\Config [enter]
3. move Software Software.bad [enter]
4. move Regback\Software [enter]
5. exit [enter]
6. reboot.
7. updated bios
8. Now the system restore worked.
This post was edited on 11-06-2009 at 07:01 PM by lance637.
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