I got home today, checked my email, visited the board, and in the meantime installed whatever Windows Update told me to then left while the computer restarted. Now I'm posting from my dad's machine

I cannot boot up all the way no matter what I try. I get to the screen with the Win2K logo, and when the blue progress bar gets about 70-75% across, I get a BSOD with some error like "DEVICE IRQL NOT LESS THAN OR EQUAL" or something like that. I'll copy down the exact message if needed. It was one of those that say "If this is the first time you've seen this screen, restart your computer. Otherwise, uninstall any recent hardware or software and reboot"

Great, how do they expect me to uninstall anything when I can't boot up using any of the F8 options. I think I've gotten this message in the past or something like it, and chosing "boot with last known working configuration" or something, and it worked. I've also rebooted several times since then, and haven't had any problems. I think that time might have also been after an update.

So what's up with my crazy machine again??