Im haunted by this blue screen of death!!!?

, 2day i got the stop code: 0x00000050 (0xfffffffb, 0x00000000, 0x80538b89, 0x00000000), no idea what it means, iv totally rebooted the hell outa my computer, downloaded antivirus, antispyware software the lot, so im absolutely sure it isnt virus, or spyware related or whatever, but i just dnt know wht the problem is, it happens after iv been browsing the internet for abt 5 mins, it doesnt happen all the time, just sometimes. iv had the computer for a good 2 years now, and it decides to conk out, b4 my most important exams, my a levels... any help will b greatly appreciated, tyvm

Im haunted by this blue screen of death!!!?ariel

your computer has a serious virus you need to reformat it

Im haunted by this blue screen of death!!!?computers

STOP 0x00000050 (PAGE_FAULT_IN_NONPAGED_AREA) indicates that the requested data was not found in memory.

Various issues might cause this BSoD STOP error, including faulty hardware such as defective memory, antivirus software or even a corrupted NTFS volume. For more information, read this Microsoft TechNet article:

http://www.microsoft.com/technet/prodtec...

I've been getting those messages since the computer upgrade and I'm planning to take this computer to a technician to have a look to see what's wrong with this PC that I've been using since it was first upgraded back in 2002.
Had you added new hardware or software before this started? Do you have a SYstem Restore point from before the problem started?