I keep getting virus warnings. Like, for example last night: I left my computer on all night so I could use it as an alarm but eventually I had to get up and turn it off because of the incessant virus warning noises.

I have AVG antivirus and EZ antivirus. They're both incredibly efficient at identifying viruses but neither seem to let me do anything about them. I've repeatedly run virus checks with them - they identify lots of viruses. Then when I try to take any action neither will let me do anything.

Advice?