As a temporary measure you could add the path to avast4 to the list of folders that are not checked by avast.

Click on the avast icon and select Standard Shield > Customize > Advanced Tab > add the path to the avast4 folder, you don’t need to add sub folders they are excluded by default.

This will hopefully get rid of the nagging screen (the files are in a location that they are not going to be activated) and you should be perfectly safe.

Catch up tomorrow.

David