April 1, 2020, the Avast program I previously had was updated to Premium. It updated with no problem.
When it rebooted, I had a notification that the Firewall was not on.
1. I clicked to turn on the Firewall but received this message "Firewall not available."
2. I checked the forum for solutions.
3. Windows Control Panel / Uninstall programs/ Avast / repair / reboot / Firewall still not available.
4. I did not want to uninstall Avast/turn - off the Internet/boot into safe mode and use the Avast uninstall utility. (Last resort)
5. I clicked
ignore.
6. I did a quick scan.
7. The scan showed me that my Firewall was off, and would I like to resolve the issue? No, brainer, I clicked
resolve.
8. The Firewall connected. Maybe I just got lucky.
Addendum: It works with Malwarebytes, Windows Defender, and Zemana Key logger for now.