I've just got to say that I had a really bad virus before..... It was on my old computer that is now, no more (<- Hehe, them sentences rhyme!)
My PC was running idol whilst I was sorting something out on my desk, suddenly, something started downloading, I couldn't press cancel because it downloaded very fast and the cancel button was disabled....After that, what ever had downloaded, started installing.... after it installed, an "Anti-Virus" program popped up, it was fake, god knows what it was called but every time I clicked "close" the thing just came back again, again, and again. It got on my nerves so much. I googled what it was and people claimed it could never be removed... but indeed, I found a way.
It's called "System Restore"
It got rid of this awful virus... not long after, my HDD died and the PC is now in the great Anti-Virus Program in the sky....
God Bless my old Packard Bell.....
Nevertheless, I now have a top spec Compaq Laptop now, with Norton 360 installed.... no other Anti-Virus program on here this time....
Regards,
Robson