Which free anti-viral program is best? Does it also include firewall, etc?
Thank you!
Anti-Virus
Kokuyougan
Tarun
I recommend avast for ease of use, silent updates, no nags and other perks. Plus it's free.

Snograt
...and COMODO free for the firewall bit?
Tarun
Exactly, Snog. 
There's a good reason not to use or recommend AVG: AVG released an update that crashes Windows.

There's a good reason not to use or recommend AVG: AVG released an update that crashes Windows.
Tarun
Exactly, Snog. 
There's a good reason not to use or recommend AVG: AVG released an update that crashes Windows.

There's a good reason not to use or recommend AVG: AVG released an update that crashes Windows.