Bad_pool_caller error

Problem:
When i restart computer, screen hang on half way and state error message write got missing or corrupt for the following file "windows\system32\config\system". And it tell me to repair the following file by using setup disc.
when I try to go in safe mode, it also appear the same thing.

I try resolve it by repair it with windows xp setup disc. but it appear new problem with Bad Pool Caller with the following technical problem code:

**** STOP: 0X000000C2 (0x00000043, 0xC87E0000, 0X00000000, 0X00000000).

I have read some threads in internet and find that lot of this problems cause by DRIVERs especially the usb drivers. But they can go in safe mode to do something about the drivers. In my case I couldn't do anything since that I can't enter to safe mode or dos mode. I really out of idea what to do. Can anyone that pro in here can lend me a help?

 

If you rana repair when you had a ...windows/system32/config/software (or hardware,sam,default,security) error, you just hosed your OS.

Best case scenario is a parallel install of windows to get to your data.