help! i coulnt run any file or anything

Removal tools (or instructions for manual removal) are no solution to an infection, particularly not with malware that may download more malware or may give an attacker remote access. One can never be sure what else was modified on the system and thus can never be certain that the malware was removed entirely.

cu

59cobalt

These rogue anti virus programs are all the rage right now. They get dropped by some pretty advanced exploit packs on web sites.

To tell among the them, you can tell us what product it's claiming to be and what domain it goes to if you pretend you want to buy their product/pay their ransom.

If it's Antivirus Soft aka av-protect.com, it behaves like you describe basically saying the world is falling in, and every program you try to execute is infected, etc.

The fix to get to a semblance of a runninbg system is to reboot into safe mode, regedit and get rid of the hklocamachine run key that it randomly named but ends in an executable randomly named but ends with sftav.exe. Seen a ton of tem. Delete that run key and you at least have a usable system to pull data off of, rollback to a restore point, or really, ideally flatten and rebuild the system.

a hand holding procedure for removing it and describing it that seems pretty spot on in the 8 samples of it I've seen. It's really good at evading antivirus signatures, and finding its way in if you've forgotten to update even one tiny sliver of your web browser stack (browser, any plugin, etc).