Well Microsoft has released the free Security Essentials and done away with the paid Windows Live One Care program they had which was a pretty sad application in my opinion the only thing it had going for it was low false positives.
So far I have heard good things about the new Security Essentials it's a very simple application for the novice user which is good it's detection rates seem pretty good still has low false positives so it could be an option for someone looking for a simple yet effective anti-virus system.
