Installing Avast Security on Mac

To install Avast Security or Avast Premium Security (previously Avast Security Pro), follow the instructions below:

Before you begin the installation, ensure all other programs and internet browsers are closed, and any previous antivirus software is uninstalled.

Install Avast Security

  1. Download the Avast Security for Mac setup file by clicking the button below. Download Avast Security for Mac
  2. Double-click the downloaded setup file avast_security_online.dmg (by default, in your downloads folder).
  3. Double-click Avast Security.
  4. Click Continue to determine if Avast Security can be installed.
  5. Click Continue.
  6. Click Continue to confirm that you have read the Avast End User License Agreement.
  7. Click Agree to confirm that you accept the terms.
  8. Click Install. Alternatively, if you would like to make changes to the default setup, click Change Install Location... or Customize.
  9. If prompted, use your Touch ID to grant permission for the installation, or click Use Password..., then enter your Administrator password and click Install Software.
  10. Click Close.
If a System Extension Blocked notification appears, refer to the following article:

Avast Security is installed on your Mac. To start using Avast Security, click Continue With Free. If you have purchased a subscription for Avast Premium Security (previously Avast Security Pro), refer to the following article for detailed activation instructions:

  • Avast Security 14.x for Mac
  • Avast Premium Security 14.x for Mac
  • 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)

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