We are thinking about possible ways how to improve the experience in these cases.
Lukas, nothing offensive but I am just a 79 year old grandfather who has used avast! since 2007 and never had a mess like this, Now in order to use avast!, I have to go in and play computer expert which I am not. Plus I have the people whom I have convinced to use avast! screaming at me to fix the problem.

I have removed avast! from 3 computers. The license expires in late June anyway.

On the other license for 3 computers, 2 computers seem fine although all experienced error messages related to the certificate thing. On the third computer, I have unchecked scan SSL .