Even when installed without the antivirus, Comodo Firewall provides advanced protection layers: Free Firewall Software Download - Comodo

: Open the downloaded .exe file. If prompted by Windows User Account Control, select Yes .

: On the initial installation screen, do not click "Accept and Install" immediately. Instead, look for and click on the Options or Customize Installation button. Deselect Components : Navigate to the Components tab. Uncheck "Comodo Antivirus".