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Download and Install

  1. Avast Mac Security for Mac OS X can be downloaded from Avast.
  2. Install Avast Free Mac Security as follows via Avast's Detailed Steps
  3. Download the Setup file for Avast Free Mac Security from Download Avast
    1. Locate the Setup file avast_free_mac_security.dmg where you saved it in step 1., and double-click to run the file.
    2. Select the icon on the right to begin installation. If asked to continue, click "Open".
    3. Confirm that you have read and accept the terms of the Avast End User License Agreement.
    4. Review the installation details. If you would like to make changes click Change install location or Customize
    5. Please select customize and uncheck Avast SecureLine VPN and then click "Install"
    6. Avast Browser Extensions cannot be installed when browsers are running. If a browser is running during Avast Setup, you will be notified that you must quit the browser(s) to complete installation.
    7. Enter your administrator "Name" and "Password" and click "OK" to confirm installation.
    8. When installation is successfully completed, a confirmation appears. Close this screen, and the initial setup screen in the background, to exit Setup.
    9. Avast Free Mac Security is then installed and ready to use.

During the installation process, Avast may update the virus definitions, so opening up the application after installing it to update the virus definitions may not be necessary. However, you may need to update the Virus Definitions manually. To do this, please follow these steps: