i use avast, ad-aware and malwarebytes. I also run as a standard user with a strong password on the admin and user accounts. I have a firewall on my router and the windows firewall.

your greatest protection is you. Unless you trust the source, don't open/download/install/click things.

when something says you have a gagillion viruses and for only $19.95 they'll fix it for you run! You are not the winner of a brand new ipod, i don't care what they say. You can see breasts anytime you want for free without signing up for anything so don't. You did not win the nigerian lottery. Limewire is a free virus download service, get rid of it.