AVG 9.0 is a great product including the FREE Version; however the Free Version does not have a built in Firewall.  So if you elected to use the AVG 9.0 Free Edition, you would have to use the Windows Firewall which is built-in to Windows. Over the past few months, we have noticed that the Windows Firewall has not been very effective against the latest threats. Therefore, we, Flying Hills Computer Service, LLC, would recommend getting the "AVG 9.0 Internet Security" edition, which has a built-in firewall. The best Anti-Virus and Anti-Spyware program on the market, with a built-in firewall, is "Norton Internet Security 2010". You can order it by clicking on the name, which will take you to their link to place the order, but you will have to pay retail. The retail price is $69.99,but we can get a "3-user license" version of "Norton Internet Security 2010" for $45. Just give us a call and let us know that you would like a copy and we will have it mailed out right away.If you need to be protected before you receive Norton from us then you can download a trial ver. of "Norton Internet Security 2010" and then when you receive it, all you have to do is enter the Product Key.