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Norton Security Deluxe not installing on Mac OS High Sierra 10.13.2
I have an iMac Retina 5K, 27in, Late 2015 running 10.13.2 High Sierra I'm trying to install Norton Security Deluxe onto. I ran the setup file which downloaded and installed the product then requires Gatekeeper access to finish installing. I have Gatekeeper set to allow apps downloaded from Apple and identified developers and clicked the "allow" button but nothing happens. I know from other machines once you allow the app to run the message about the blocked "Symantec" app should disappear along with the "allow" button. It doesn't. Consequently, Norton fails in it's "validation" phase of install every time.
I used these terminal commands to shut off gatekeeper and allow installation of apps from everywhere: http://osxdaily.com/2015/05/04/disable-gatekeeper-command-line-mac-osx/
Then I used the removal tool to uninstall Norton (https://support.norton.com/sp/en/us/home/current/solutions/v60392881_End...) and redownloded/installed the suite and once installed it still locks up at the Gatekeeper "allow" button.
A Norton live agent says it's not Norton it's Apple and had someone else earlier today with the same issue. Are there other's having trouble? Anyone with a fix?