CraigB
6
It is the latest version of Avast 2225 that has a firewall not starting in Win10 fix included https://forum.avast.com/index.php?topic=174286.msg1237838
Open MBAM and go to settings then malware exclusions, click to add folder and navigate to the Avast Program folder - click once and accept it, then do likewise in Avast settings to add the MBAM folder.