Activating Avast Internet Security with an activation code

When you purchase Avast Internet Security, an order confirmation email containing your activation code is sent to the email address you provide during the purchase. Follow the steps in this article to activate Avast Internet Security using your activation code after installing the software on your PC.

If you have not already installed Avast Internet Security on your PC, refer to the steps in the following article:

If you are unable to locate your activation code, you can find it in the Avast Account connected to the email address used to make the purchase. For more information, refer to the following article:

If you received a license file instead of an activation code, refer to the following article:

Activate Avast Internet Security

If you did not activate Avast Internet Security during installation or you want to activate your subscription on a secondary PC, you can do so using the activation code received in your order confirmation email during the purchase.

Follow these steps:

  1. Open your order confirmation email.
  2. Scroll down to the Installation Instructions section of the email and copy the activation code.
  3. Right-click the Avast icon in your system tray and select Subscription information.
  4. On the Subscription screen, click Insert activation code according to your user interface:
    • In the Avast Internet Security section:
    • At the top of the Subscription screen:
  5. Paste the previously copied activation code into the box and click Next.
  6. Click OK to confirm the activation. After the activation code is accepted, the text Your subscription is active appears in the Avast Internet Security section. Information about your subscription such as the expiry date and number of days remaining is also visible.

You can activate your subscription on the number of PCs you specify when you make the purchase. For example, if you purchase a subscription for three PCs, you can use the one activation code to activate Avast Internet Security on three PCs. The number of PCs your subscription is valid for is specified in your order confirmation email.

If you need to transfer your subscription to a different PC, uninstall Avast Antivirus from your PC before you activate your subscription on the alternative PC.

  • Avast Internet Security 17.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
  • Microsoft Windows Vista Home Basic / Home Premium / Business / Enterprise / Ultimate - Service Pack 2, 32 / 64-bit
  • Microsoft Windows XP Home / Professional / Media Center Edition - Service Pack 3, 32-bit

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