The firewall function is automatically turned on when the latest version of avast free version is updated.
It was said that it will be installed in version 21.7 or later, is that the reason?
By the way, some terminals do not have a firewall.
If you are using it in the current environment, sharing will not be connected within the local terminal,
I am in great trouble because I cannot print.
I don't know if the automatic firewall feature is turned on because of the automatic update,
or if Avast's free period has expired and it's time to update.