Last night my computer just randomly rebooted itself, everything was loading up fine. It asked me which OS I want to use (both are XP) and I normally choose the first one. After the Windows logo screen with the loading bar had finished, it NORMALLY would go straight to the login screen, but it just hung on a black screen. So I tried starting in Safe Mode, which did nothing. I then tried my other OS, which works perfectly fine minus the fact that it has no Service Pack and the other one is Service Pack 2.
So I figured I'd try putting in my XP CD and repairing the installation, which it said it had changed a few things and needed to reboot. After it rebooted, I was presented with a different problem. It did nothing...thus making me boot from CD again and going through the process again. Only this time after I press Enter, and then F8 to agree, I'm given a blue screen with the IRQL_NOT_LESS_OR_EQUAL error, saying that I may have installed new hardware or something, which I have not done. It says this everytime I try to F8 to agree, leaving me with no option to delete/install/whatever on any partitions. Not only that, but when it asks me what OS to choose on startup, it normally gives me 30 seconds, but now it gives me 0 seconds. I have to press F8 repeatably to get into OS startup options. Thing is, I can still get onto my OS with no Service Pack with no problem.
So I was wondering, what are my possible solutions? Would deleting the WINDOWS folder that I cannot access help? Could it be something with my BIOS? Is reformatting the only real option I have?
Thanks a lot