Comodo Internet Security 4.0

Comodo Internet Security 4.o ,is a combination between firewall and anti virus that is reliable to test the security hole on your computer to ensure data that entered into your computer from internet not containing any thread.On the installation proses you will ask for choosing what components will be installed into your computer, including; safe search and ask.com tool bar, so select that suit on your needs and avoid installing unnecessary components, because it just bother your self . This program totally worth to try because is strong and the most important it's  free. select 32-bit or 64 bit ,  both supporting Windows 7, thank you . Source