I have an HP Pavilion--getting to be a few years old now, 19GB, 512 RAM, and recently, I started getting the same fatal error as you are. I can get into Safe Mode and most of my stuff appears to be fine. I run every diagnostic I can get my hands on, but no luck. Sorry that I don't have an answer for you, I was hoping by adding my appeal a wizened PC pro might help us out. I have another fun catch: I can't seem to find my original Windows XP Pro CD since I moved--any possible way to fix this without it? Many thanks and happy holidays.
Colby
hi my system not booting & is saying -c000021a FATAL SYSTEM ERROR status of oxc 0000135(0x00000000 ox 00000000) system has been shut down .
how do i repair this problem. my system has window xp installed.

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