Thanks again. Not to worry about the English. That I am used to. I just did not know the exact wording of the feature I had turned off.
Anyway, it is solved in the way that my back-ups work now. I am still interested in what exactly causes the interference. In any case I usually do not like to miss out certain features.
I’ll post this on the Avast link you provided.
So far no probs any more with un-ticked AVAST feature.
Nice weekend
Kobe