Thanks for the info. I just purchased Avast Internet Security after using free Avast for a while.( 2 years for 1 price of one) and installed on desktop and laptop.
Everything was easy upgrading the free Avast, went smooth and it accepted license on both machines without problems.
In fact after I removed my other free firewall ( online armor 4 free) my latest windows .net4 updates finally installed after 2 weeks of failed installs.
Thanks Avast

windows 7 user