Yesterday I received tens of firewall notification, and even if the "Remember my choice" falg were set, I've received notification also for the same program/task already processed ("Allow"/"Deny"). Since this morning, when I start windows (10) I get Avast notification about firewall not started, and if I try to start it manually (by pressing "Activate" button), I get "No firewall available" ! I've already restarted my system several times...