system
8
And this one is from your Control Panel / Windows Firewall. If you don’t have any third party firewall installed on your system, you should enable your built-in Windows firewall… see attachment.
Again, message you are reciving is directly pointed to non-enabled firewall in your system. It has nothing to do with avast! existance… avast! is an antivirus.
Sorry if this one looks stupid, but I don’t have any screen recording software, so I had to produce animated gif to picture this to you…