Hi,
My current version is 2014.9.0.2011 of Internet Security. My OS is Win 7 Home 64. Avast keeps telling me that windows firewall is turned off but when I check the system it is in fact turned on. When I tell Avast to resolve the issue anyway, it says it is unable to start the firewall.
As a possibly related issue, I get a windows action center warning that Avast is turned off. I have reset both with no change to the warnings.