Originally posted by wannabeprivate
In my opinion, it is microsoft security essentials....It is free...It doesn't prompt me to give them money...Unlike mcafee, avg and others..
While free it does not offer a complete system scan of viruses. A good setup would be to use Windows defender, malwarebytes, adware, spybot, and clamwin.
Also using any other browser instead of IE will help keep vulnerabilities down to a minimum.