Yeah, that's right. Free, if you haven't already heard of Microsoft Security Essentials let me introduce you to the program.
This program is available for free, so long as you have a genuine copy of Windows XP, Vista or 7. Like all of these programs they can only prevent so much, be careful what you download. check out more information
here. Unlike other paid programs that do far too much, this one is plain and simple to the point. It runs in the background as you surf the net almost immediately detecting infections before causing damage.
I specifically LOVE this program because of how easy it is to read more information about what it has detected, here the threat was not critical.
In the event the program detects a critical virus, its super easy to remove the threat.
you then get prompted to remove the threat.
Its so simple! every program should really be this easy and simple to use. Download it
here!