I'm glad I'm seeing so few McAfee users. That thing is a 'legit' virus. An entire hospital computer system had to shut down in my home town due to an, "Update," a day or so ago (No meds could be ordered, No computer-dependent equipment could function, etc.). It took my old school district along with it as well! Everyone was up and running within a few hours, but it wreaked havoc on quite a few systems that depend on it while it was doing... Whatever it is that it does.
McAfee is a piece of trash!
Norton isn't particularly perfect either, but it serves me well.