In the Security & Privacy preferences window, on the Privacy tab, click the lock icon at the bottom, type your administrator password and click Unlock. To complete the Norton installation on macOS 10.15.x or later, you need to allow Full Disk access to Norton. In the Norton Installation window, click Open to go to the Security & Privacy settings. In the Norton installation window, click Continue. Next to System software from application Norton was blocked from loading, click Allow. In the Security & Privacy preferences window, on the General tab, click the lock icon at the bottom, type your administrator password and click Unlock. If you see a prompt to restart, click Restart.Īfter restarting your Mac, in the Norton installation window that appears, click Open Now to open System Preferences. When you see a prompt for Install Helper tool, type your administrator password and then click Install Helper.

In the Norton installer window, select I want to join Norton Community Watch, and click Install to start the installation. When the download finishes, double-click the file that you downloaded to launch the Norton installer. In the Get Started page, click Agree & Download. Type in your email address and password for Norton, and click Sign In.