Windows

Or you have the welchia virus (or another rpc based virus)
her's the link to that specific removal tool
http://tinyurl.com/khlz

then select your internet connection , go to advance and select protect my computer from the internet.

or when the computer boots , press f8 when you see starting windows ...
then select safe mode.
after you booted in safe mode, go to device manger and check which driver may be causing the problem.


Leopold

This may indeed be related to a driver. I had the problem which was traced to the base video driver (not the one for my board, but the XP driver). Windows XP KB has the solution. You could also insure that you have all the latest MS updates in your system.

Right-click My Computer, and then click properties.On the Advanced tab, click Settings under Startup and Recovery.Click to clear the Automatically restart check box under System failure, and then click OK. Start regedit: HKLM\System\CurrentControlSet\Security Remove Etetnt.mpd; If you have Roxio, Then go to HKLM\System\CurrentControlSet\Services
Remove files:
Cdr4vsd, Cdralw2k, Cdr4_2k, Cdudf

Hope this helps.