To upgrade your Avira Free Antivirus to Avira Antivirus Pro you need to purchase the product via the Avira Website. Once you have purchased an Avira Antivirus Pro license, log in to your Avira account and activate your license.
Activate a new license via your Avira account
To activate your purchased license, log in to your Avira account with your email address and password.
- Click Subscriptions in the left menu bar.
- Go to the tab Activate new license.
- Enter your license.
- Click Activate License.