Open your Avast interface and go to SETTINGS » Registration
- Click on Offline Registration “it is located under the Date of registration”
- Click on Insert the license key
- Enter the license key above (C47315810H1200A1017-2UW7TV9X) and confirm by clicking ‘OK‘
- Now you should be able to use the free protection for the full year. You can check the subscription details in the “Registration area.