Just a topic and no information at all is not gonna help you (or anyone else)
It’s a statement regarding the simple fact the software wiped my settings after the last update - what more do you want? Windows 8.1?
The truth about this system is the only help forthcoming will be to use the removal tool and reinstall.
Which will not restore settings that took considerable time to configure.
Which version of avast are you using ? If it is free/Pro then it goes nowhere near the firewall
Where is your backup ? (image of the drive)