Ok so I was trying to fix my father's computer that seemed to have a nasty trojan. If I remember correctly it was "Internet Security 2010" that was the problem. I ran malwarebytes and it was able to detect the trojan and needed to reboot to complete the deletion. However after rebooting XP refused to start and it also refuses to start in safe mode. Once it begins to start a PAGE_FAULT_IN_NONPAGED_AREA blue screen pops up. The stop message is 0X00000050 (0xAF0B5000, 0X0000000, 0X805E9A0B, 0X0000000) I have tried restarting as the screen says, both in safe mode and normally but this same screen continues to come up. I have found some information on the windows help forum (http://support.microsoft.com/kb/903251
) regarding the 50 stop message however the solutions offered by this page are not of any use to me because windows will not start at all. Is there anything I can do to simply start windows and at least try to retrieve some of the files or does it seem a complete restart to just out of the box conditions is in order? Please any help would be greatly appreciated!! Thank you!