Hello,
Before I download / install new updates for Flight Simulator software products I turn off Core Shields (File and Behavior) unitl next computer restart.
After the computer restart if I bring up Avast I get a message saying these Shields are still Off and I have to select option to turn them back on.
In my case I had used the PC for several hours before I used Avast again and found out the Shields were still Off (PC un-protected?).
For the past years all previous versions of Avast have not had this problem.