Windows protection error

If its a fresh install, Then your problem is most likely driver related. To find out boot up in safe mode. If your able to boot into safe mode try systematically disabling different drivers from loading in device manager or start pulling cards if there not integrated on to the mainboard. If its not a fresh install then you still need to try going into safe mode once there use msconfig and do a diagnostic start up in addition to disabling drivers. Once your able to get into windows normally tryre-enabling each device and stuff loading in msconfig. If your unable to get into safe mode at all then try doing a fresh install of windows or into a new directory to eliminate the possibility of a corrupt registry. If you still get the problem then suspect hardware. Pull all cards except for video then run a hard drive and memory tester...

Hope this helps....