Adding Comodo AV to firewall

Comodo Internet Security - CIS AntiVirus Help - CIS
#1

I have Comodo Firewall 8.4.0.5068 on vista 32 bit. Firewall only. How do i add the anti virus. Do I uninstall and get the AV and firewall together

#2

Got to programs & features control panel and select cfw and click change which will allow you to install the AV.