Norton bah humbug
I used to be a Symantec/Norton customer for Windows. Right up till I let the kit expire and tried to renew. It took months of back and forth with Symantec helpless desk (uninstall, reinstall, no not once but twice in a row, run this special exec (multiple times with multiple flavors, sometimes from hidden pages on the Norton site), edit your registry (multiple times), delete this file or that one, re-install from CD not the net, no try the other way around, reboot whilst sacrificing a chicken on the keyboard, ...). This all happened after they hired the idiot CEO that decided to focus on "piracy", it was a common thing at that time to think a company's problems could be fixed by anti-piracy. Usually, though, all those heavy handed anti-piracy actions alienated paying customers. Like this one.
This sort of "every customer is a criminal IP thief unless proven otherwise" attitude damaged several companies. You'd think that a customer that has been around for a few years is likely legit...and reserve the thumb screw version of the software for first time buyers. The c-suite is usually devoid of intelligence though.