Norton Product Key can be found on the Norton.com/setup page. And if you have purchased the CD from a local retail store or from online, then the Norton product key is either inside the box or over the box in the form of sticker/print.
https://sites.google.com/view/wwwnortonsetup-activation-key/
--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)