Disabling the warning messages?

How can I disable the warning messages. I just want to choose a default action for every virus found. I don’t want to be bothered.

You can’t do it on avast 4.8.
You’ll have to wait for avast 5 in few weeks.

on the resident task setings, advanced tab you can activate silent mode with general answer “no”. it then moves all viruses to the chest. not valid for the manual scanning.