My old trusty Dell only gets to the blue screen of death when booting up. I can only get up in Safe Mode, which is a pain because I can see about half the screen and can't get to all of the response buttons in the applications.
I have had problems with some viruses that Norton could identify but not remove.
Tried about 5-6 other anti-viruses without results and finally had some success with Stinger to remove the viruses.
Here's the output from the event viewer on the last boot:
The following boot-start or system-start driver(s) failed to load:
I updated XP to Service Pack 3.