Comodo Firewall Pro is a high rating (Download.com 5 Star Editor’s Rating) PC security software. This award-winning firewall software is totally free. You can dowload the full function version for free, updates are also free. It supports Windows XP and Vista, both 32 and 64 bit versions.

• Complete protection from Hackers, Spyware, Trojans and Identity theft
• Host Intrusion Prevention System stops malware from being installed [NEW]
• Clean PC Mode registers your current applications then will allow only applications that you approve to be installed on your computer [NEW]
• Malware Scan Feature checks your computer for viruses, spyware and trojans before you install Comodo Firewall Pro [NEW]
• Free Download. No charges or license fees ever.