- Right-click the Avast icon in your system tray and select Subscription information.
- On the My Subscriptions screen, click Enter a valid activation code.
- Type or paste your activation code into the text box and click Enter.
- Check your subscription details for the entered activation code. If you have an activation code for interchangeable products, you can click on a listed item and select an alternative subscription from the drop-down menu. Then click Continue to return to the My Subscriptions screen.
Your Avast Pro Antivirus subscription is now activated. The expiration date of your subscription appears under Subscriptions on this PC.