Next time consider the Cnet Spyware forum. Here's my thought. If the OS is that damaged, step by step.
1. SAVE YOUR FILES.
2. Try bootable rescue CDs from this list:
My friend talked me into downloading a game that he said was clean of viruses. You can see where this went.
The little security pop-up comes up every ten or so seconds saying "Windows Security Alert: Application cannot be executed. The file wuauclt.exe is infected. Do you want to activate you antivirus software now?". It's now McAffee or the other Antivirus program I downloaded, and it keeps bringing up porno.org on IE.
It won't let me bring up task bar, I can't delete the game I think gave it to me (XIII, it's an mmofps), and it exits my antivirus programs whenever I try to bring them up for a scan. I'm not really tech-savvy, and the only thing I can think to do is backup my important documents and re-install Windows (what we usually do, since we get a similar virus every few years. This one's on a different comp though). If that's the only option, I can do it; all I have is a few digital art pieces and Portal.