When you purchase Avast Internet Security from within an Avast application, your subscription is automatically activated on the Windows PC you use to make the purchase. A subscription purchased through another Avast sales channel, such as the Avast Store, are also automatically activated when you receive and install the preactivated setup file. If your subscription does not activate automatically, you will need to manually activate using either a valid activation code (sometimes called a subscription code or voucher code), or license file, or via your Avast Account that is registered with the same email address you used to make the purchase. If you want to use your Avast Internet Security subscription on another PC, you also need to manually activate it. The number of PCs you can activate depends on the subscription you purchased.
Activate subscription
Troubleshoot activation issues
To troubleshoot activation issues, reinstall Avast Internet Security on your PC and activate it again. For reinstallation instructions, refer to the following articles:
In some cases, subscription synchronization may take up to 24 hours after purchase. If your subscription is still not active after this time, refer to the following article:
- Avast Internet Security 19.x
- Microsoft Windows 10 Home / Pro / Enterprise / Education - 32 / 64-bit
- Microsoft Windows 8.1 / Pro / Enterprise - 32 / 64-bit
- Microsoft Windows 8 / Pro / Enterprise - 32 / 64-bit
- Microsoft Windows 7 Home Basic / Home Premium / Professional / Enterprise / Ultimate - Service Pack 1, 32 / 64-bit