Spybot - Search & Destroy
Full user review
"Found What Norton Missed"
Simple to install and use. Works very well. It's FREE.
Can't take care of everything.
I've used this in the past, and was always satisfied with it. I have Norton Internet Security that I am paying for, and it let a number of viruses through. Spybot found some of these, and was able to deal with a number of them.