How to Turn off Avast Antivirus Completely:
Turn Off Avast temporarily (specific shields):
Just open the avast user interface by clicking on the Avast icon.
Now click on protection located in the left sidebar and click on core shields.
Now you can choose your desired – click on the green ON button and what shield you want to disable.
Just choose one of the following options: Stop for 10 minutes / Stop for 1 hour / Stop until your next restarted / Stop indefinitely
Just click on yes to disable the shields and quickly turn on or off – Red and Show Off.
How to Turn on Avast Free Antivirus:
Right click on the same system of the above steps and located the avast icon and in the Windows system.
Now move your mouse pointer to avast shields control and easily enable all shields.