Resist and eliminate Viruses, Worms and Trojans, with free Comodo Antivirus

Comodo Free AntiVirus eliminates known Viruses, Worms and Trojans from desktops and networks with no license fees or hidden costs.

Features: Detects, blocks and eliminates viruses from desktops and networks; Constantly protects with real-time On Access scanning; Built in scheduler allows you to run scans at a time that suits you; Isolates suspicious files in quarantine preventing infection; Daily, automatic updates of virus definitions; Simple to use: install and forget while it protects you in the background

My experience so far with Comodo antivirus is satisfactory. Even when it detects problems in files I know they are fine, such as password revealers or similar hacking programs that I choose to use, it can add them to an exceptions list easily, contrary to Avira, for example, which makes your life very difficult when you need to add an exception.

Note that sometimes Comodo Internet Security may slow down  your computer. If that is a problem, you can try the combination of PC Tools Firewall Plus with Avast or AVG Free Antivirus.