I'getting worried about the security of my Xp desktop ( fully updated and running ZA free) after MS support ends in April 2014. My router has a rudimentary firewall, and I run ZA free on my computer. Will this protect it after the MS updates end? I also have an old laptop running Debian, two Motorola Xoom's, and a droid phone behind my router. The Xp Box is plenty fast enough and does everything I need to do, so I don't want to update it to a supported version of Windoze. Considered installing Linux in April but dread the learning curve. Also considering adding a Linux based hardware firewall to the front of the network , wondering if that would protect the soon to be crippled XP box, ( and eventually the Xooms , who's support is also ending).