: Navigate to the folder where you saved the .avastlic file, select it, and click Open .

: Click on ☰ Menu (top-right corner) and select Enter activation code .

: On the activation screen, click the link that says Use a license file .

: For a more secure and modern method, simply sign in to your Avast Account within the app to automatically sync your subscription without needing a physical file. Missing AVAST license file

: Find the license file in your order confirmation email from the retailer or Avast Account .

To activate Avast Premium Security using a license file (typically ending in .avastlic ), follow the steps below based on official Avast Support procedures.

: Right-click the attachment (often named License.avastlic ) and select Save Link As or Save As .

: Review the subscription details and click Continue to complete the activation. Important Security Notes