I have had a problem as well with the firewall.On more than one computer my work laptop after sitting idle sleeping for 2 weeks to my dismay turn the Avast program off leaving me with a unsecured system(round ball big red X)I then try ed to contact Avast and got somekind of YOGI Were I was told to uninstall and reinstall restart.But i decided my kid’s homework b ball game and food was a better call that was a week ago and I really don’t want to go back.