Let's go a different rout just for curiosity sake. Scan for malware/viruses. Sometimes they can bring slowdowns.

One other question, are you receiving these slow downs when running more modern games/software?

Oops, refer to next post.

I'll run a virus scan when I get back home. I just tried playing Fable, and it immediately BSOD'd again, with a new error, I think. I have the minidump file and attached it, I think it may be my drivers still.

If need be, I could possibly format my drive as a last option.

It's been a couple days with no replies, and I'm still having the issues. I tried formatting and installing from scrap, and still no dice.

This error occurred in your nVidia drivers - have you installed the latest version from here: http://www.nvidia.com/object/winvista_x64_175.19_whql.html

If the errors continue, I'd suggest enabling Driver Verifier to see if it can determine what driver is causing the error: http://support.microsoft.com/kb/244617

Yes, I had the latest one, but after my format I decided to try with a previous driver to see if it would help. I had the latest driver before and still BSOD'd, but I'll try installing it again and seeing if it helps at all, if not I'll run the verifier and get back to you.

0x00000050: PAGE_FAULT_IN_NONPAGED_AREA

Requested data was not in memory. An invalid system memory address was referenced. Defective memory (including main memory, L2 RAM cache, video RAM) or incompatible software (including remote control and antivirus software) might cause this Stop message, as may other hardware problems (e.g., incorrect SCSI termination or a flawed PCI card).

So basically, the cause can be any number of things, and I'm shooting in the dark? I don't think it's the memory, but next time I crash I will probably replace them to make sure. Also, I ran the verifier, and it just said that all my drivers were verified.

Have you run MemTest on your memory? Also note that it isn't just system memory that can give problems. What anti-virus are you running?

As stated a few times in the thread, yes I have run memtest on my memory, overnight, with no errors at all. And my antivirus, though I've had it off for a while, is Kaspersky.

So I swapped out my old sticks of memory with two, memtested and passed sticks. Also ran my anti-virus, no infections. Still getting BSOD's, and I'm not sure what else I can do about it. I'm just thinking about going from Vista back to XP.

Attached the latest minidump.