The free Comodo Internet Security Premium (2013) combines firewall and antivirus, and adds a number of advanced features that techies will love. Its Behavior Blocker earned a clean sweep in my malware blocking test, but that same technology trashed installation of valid programs. If you can’t afford a commercial suite, you’ll get reasonable protection from Comodo.
Quoted from Comodo Internet Security Premium (2013) on internet – Yahoo! News Search Results