I migrated the complete content of one MacBook to a new one, including the Norton Security App. Now I cannot start this app, message: "NS cannot be opened because of a problem"..., and I cannot install anew from the current download, message: "You have a newer version of the product already installed...Please contact support" Deleting the files NS.app and NortonInternetSecurityBG.plugin and reboot does not help. What can I do?
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