Free Comodo Firewall - Secure your system against internal attacks such as Trojan viruses / malicious software and external attacks by hackers. Safeguard your personal data through a simple user friendly single click interface offering full immunity to attack. Comodo Firewall helps you connect in a secure way to the internet and global networks. Total peace of mind is FREE!!
The software will run for 30 days at which time you will need to register for an activation key. Registration is FREE.