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Norton (Mac) - Message: "Free update to High Sierra Support" or "Update to stay protected"
If your Norton for Mac subscription is eligible for a free upgrade, Norton displays an alert to upgrade to the latest version that is compatible with the new macOS 10.13.x High Sierra.
Do the following to upgrade Norton:
In the update alert window, click .
If you have closed the update alert window, start your Norton product, and then click in the main window.
In the Software Update window, click .
Type your administrator password and then click .
Norton Update Agent uninstalls the older version of Norton product that is currently installed on your Mac.
When the uninstall finishes, click .
After you restart your Mac, in the Software Update window, click .
When the installation finishes, click .
After you restart your Mac, your Norton product displays a Registration alert to complete the registration. Click .
In the Norton product Subscription window, type your Norton account password, and then click .
If you do not have a Norton account, click , and complete the sign-up process
You now have the latest version of your Norton product installed on your Mac.