What can I do about this?

Ive gotten myself into the worse mess ever. My desktop has gotten a virus, and there is no scanner that will pick it up (avast!, Spybot S%26D, or Spy Eraser). I do not want to format. None of the virus cleaners (vcleaner, avast! Virus cleaner) will clean it. Here are some of the symptoms. If someone can diagnose it, I can get it taken care of myself.

1. My computer BSOD's every so often with a Kernel_Page_Stack_error(or something like that), OR my computer just shuts off at random points.

2. It is very slow.

3. None of the scanners/cleaners will see the virus.

4. There are no suspicious processes running in the task manager.

Any help would be appreciated.

What can I do about this?viruses

Have you checked for rootkits?

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What are the key benefits of F-Secure BlackLight Rootkit Elimination Technology?

F-Secure BlackLight can detect and eliminate active rootkits from the

computer. Traditional antivirus scanners can't detect active rootkits.