Here's how to install AVG Internet Security (Multi-Device)
A few easy steps is all it takes.
2. Once the download is finished, open the avg_mac_security_online.dmg file (by default, downloaded files are saved to your Downloads folder).
3. Double-click AVG AntiVirus and follow the on-screen instructions to complete the installation process.
See detailed installation instructions
Note: If prompted, click Open system preferences to allow required permissions.
See detailed installation instructions
4. In your Applications folder, double-click the AVG AntiVirus icon to open the application, then go to ☰ Menu and select Activate paid features.

5. Type the activation code you received with the product into the text box, and click Activate (if asked, enter your name, email, and postal code).
Note: If you have a valid product subscription, but the provided activation code is rejected, enter it in our activation form to retrieve a working activation code via your AVG Account.
Go to activation form