Register for Free at http://www.avast.com/eng/home-registration.php

 

AVAST will then send you an email with a key code

 

Copy and paste the code into AVAST by:

 

-  Right clicking on the Avast icon in your task bar at the bottom right of your screen

 

-  Choose "About Avast"

 

-  Click the "License key" button

-  Copy & paste the code