HI, has any one seen a fault message "PAGE_FAULT_IN_NONPAGED_AREA " on a computer "blue Screen", Any one have any idea?

Problem: PC can not boot up. only display a blue screen and a message "PAGE_FAULT_IN_NONPAGED_AREA "

History : I was doing a update to XP pro. from 2000 Pro. every thing goes well till the end of the update. PC reboots then never come back, only the fault message.

Things need to know : is any way to fix this problem, also, I can't even use the CD to boot/start the PC.any one can help please.