You shouldn't have changed any of that default settings... Why did you do?
WHY??? Why do you persist in saying this to users? The whole point of having these settings available is to provide users with options to meet their different needs.
What on earth would be the point of avast! spending all this time and effort creating an adaptable AV solution if they then insisted that settings must never be changed by users?
This sort of advice really is not creating a good impression on people that read these forums in the hope of finding help and is not a useful answer at all.