Avast Premium Security for WindowsAvast Premium Security for Mac is a paid product that requires a subscription to use. After installing Avast Premium Security, you may need to manually activate your subscription.
Your chosen activation method:
Enter activation code
To activate Avast Premium Security using an activation code:
- Locate your activation code. This is included in your order confirmation email. For detailed instructions, refer to the following article:
- Double-click the Avast Security icon in your Applications folder to open the application.
For alternative options to open Avast Premium Security, refer to the following article:
- Select
☰
Menu ▸ Activate paid features. 
- Type or paste your activation code (including hyphens) into the text box, then click Activate.

Your Avast Premium Security subscription is now active. If activation is unsuccessful, refer to the Still need help? section in this article.
If you purchased
Avast Premium Security (Multi-Device), you can use the same activation code to activate Avast Premium Security on your
Windows and
Mac devices, as well as Avast Mobile Security Premium on your
Android and
iOS devices.
For detailed instructions to activate your multi-device subscription on Android and iOS, refer to the following article:
To confirm which subscription you purchased, check your
order confirmation email or your
Avast Account that is linked to the email address you used to purchase Avast Premium Security.
Sign in to Avast Account
To activate Avast Premium Security using an Avast Account:
- Ensure that you know which email address you used to purchase Avast Premium Security. This is the email address where you received the order confirmation email after purchase.
- Double-click the Avast Security icon in your Applications folder to open the application.
For alternative options to open Avast Premium Security, refer to the following article:
- Select
☰
Menu ▸ Sign in to Avast Account. 
- Enter the credentials for your Avast Account that is linked to the email address you used to purchase Avast Premium Security, then click Sign in.

Your Avast Premium Security subscription is now active. If activation is unsuccessful, refer to the Still need help? section in this article.
If you purchased
Avast Premium Security (Multi-Device), you can use your Avast Account to activate Avast Premium Security on your
Windows and
Mac devices, as well as Avast Mobile Security Premium on your
Android and
iOS devices.
For detailed instructions to activate your multi-device subscription on Android and iOS, refer to the following article:
To confirm which subscription you purchased, check your
order confirmation email or your
Avast Account that is linked to the email address you used to purchase Avast Premium Security.
Still need help?
We recommend reviewing the information below, which explains how to resolve some of the most common activation issues.
Try these possible solutions:
- Try using your Avast Account to retrieve a copy of your activation code. For instructions, refer to the following article:
- If you see an error message during activation, refer to the following article for advice:
- Try following the instructions to activate using your Avast Account instead.
- Completely uninstall and then reinstall Avast Premium Security. This can resolve issues that are caused by incorrect configuration or corrupted files. We recommend following the exact steps in the articles linked below:
After reinstallation, try activating your subscription again.
Try these possible solutions:
- Ensure that your Avast Account is linked to your Avast Premium Security subscription. To verify this, Sign in to your Avast Account in your web browser and click the Subscriptions tile to see a list of the linked subscriptions.
- If your Avast Premium Security subscription does not appear in your Avast Account, you can manually add the subscription. For instructions, refer to the following article:
- Try following the instructions to activate using an activation code instead.
- Completely uninstall and then reinstall Avast Premium Security. This can resolve issues that are caused by incorrect configuration or corrupted files. We recommend following the exact steps in the articles linked below:
After reinstallation, try activating your subscription again.
If you are still unable to activate your subscription, you can click the link below to open the Avast Technical Support form. After you submit the request, an Avast Support agent will contact you to help resolve the issue.
Further recommendations
To learn more about Avast Premium Security, refer to the following articles:
For instructions on transferring your subscription to a new device, refer to the following article:
- Avast Premium Security 21.x for Windows
- Avast Premium Security 14.x for Mac
- 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 with Convenient Rollup Update, 32 / 64-bit
- Apple macOS 11.x (Big Sur)
- Apple macOS 10.15.x (Catalina)
- Apple macOS 10.14.x (Mojave)
- Apple macOS 10.13.x (High Sierra)
- Apple macOS 10.12.x (Sierra)
- Apple Mac OS X 10.11.x (El Capitan)
- Apple Mac OS X 10.10.x (Yosemite)