Windows 7 - Microsoft Security Essentials

I have it and is it trustworthy for anti-virus? I just downloaded Comodo firewall.

MSE is pretty good. Just remember that no AV can really prevent infections. They are more of a band-aid than anything else. If you surf the Internet with a healthy sense of paranoia you can avoid most problems yourself.

Though possible running two concurrently isnt advised. MSE tends to cause less BSOD's and comodo isnt one of the strongest contenders (IMO)


Ken

Firewall and AV are two different things. Firewall is designed to filter network traffic whereas AV is designed to detect malware and eliminate it as well as prevent it from damaging your computer.

In regard to MSE, I definitely recommend it, it's very good, efficient, and best of all, free. If you meant to refer to Comodo's AV, then I would say it's not all that good and in my experience, not all that resource efficient either.

You can see good comparisons of AV products here:

AV-Comparatives - Independent Tests of Anti-Virus Software - Welcome to AV-Comparatives.org

As for firewall protection, the first thing you want to configure is your router's firewall. After that the Windows firewall works fine. You can tighten up the firewall rules for the Windows firewall if you want, but your router should provide plenty of protection.