If you are going to need to run Windows, I have used GriSoft and its very good, but I found a better free for home use virus software, it speaks to you when it has been updated. Definitely recommend, auto update. go to
www.avast.com. I did tech support for a high speed internet company for almost 4 years. and most problems were due to Windows OS, viruses, or
sometimes just a loose nut behind the keyboard. HOPE this Helps !!