Ok this is going to be a simple thread with hopes to get a quick nice answers. Since im dual booting Vista Ultimate x64 and Windows 7 Ultimate 64x, i have being in search for a good firewall for my Windows 7. Here is the thing, last year i bough CA internet Security Plus 2008 (5 pc users). I only use one key, with Vista Ultimate x64 and it installed both personal firewall and antivirus. I went ahead and tried to install it on Windows 7, but i was only successful to install the Antivirus and still use one of my 5 keys, for some reason it saids that the personal firewall was not compatible. Ok fine, i did some reaserch, it looks like only 2010 Internet Suite is capable of being install with 7 but i still did not understand how come the antivirus could but not the personal firewall. So fine, i have no personal firewall so im using Windows Firewall, which it seems fine but i prefer a 3rd party. Now when my girl got her Acer Windows home Premium 7 x64 (yesterday) i went ahead and tried to atleast install CA antivirus since i noticed from my last personal tried it was going to be the only thing, but not it says on her that is not compatible at all. So now im really confuse, how in the heck can it work on Ultimate but not on Home. So now im in search of a good antivirus and personal firewall i dont care if i have to pay, but does anyone have any suggestion?