3.8.65951.477 fails to load firewall on windows 7 b7000 fresh install.
And also the AV cannot update i assume because of the firewall not loading?
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Welcome to the Forums Gibbz.
Windows7 is not supported yet.
However, many users have successfully use CIS on Win7 by running the installer in Vista Compatibility Mode. Also, please note the update (cfpupdate.exe) also needs to be run in Compatibility Mode.
Not having any luck with compatibility mode. Windows 7 “7048”. 
just reporting:
Comodo Firewall for Vista 64 bit does not works in Windows 7 64 bit RC1. Not even installing under Administrator privileges, and Vista SP2 mode.
Also, I found scary forums messages about uninstalling it, causing BSOD, and not really getting it uninstalled. I had no problem.
What version are you installing? What is not working? Can you give a more precise description?