DavidR
5
The AIS is a suite, when it expires it all expires, so it isn’t just a case of uninstalling AV part and using the firewall as that is part and parcel of the paid suite. Not to mention the whole point of the suite is its integration and the firewall on its own wouldn’t benefit from the behavioural elements of the AV, it would be weaker.
So you can only uninstall AIS, reboot and install the free version of avast and select another firewall if you aren’t intending to renew your license.