Hi DavidR,
You and bob3160 are 100% right.
Just wanted to give it here for completeness. I have Windows defender disabled as this should be for the Avast settings.
Steven Winderlich mentions something, but forgets to mention that.
No bob3160, DavidR and polonus etc. do not need this because they have Avast AV resident security.
So for all of us keep windows defender disabled.
polonus