Ray,
Which virus program, if you were to pick one, would you select to protect your computer?

   I have no preference.  I don't like any of them.  I use avast but it is always trying to install something or another which ties up my computer until it asks me if I want it (to which I say no).
   If you do not open unknown email attachments, do not click on links in spam emails, and do not go to questionable websites, you should not have a problem with viruses.