Install 5 user licence on other devices

I have a new 5 user licence which I wanted to install on 3 other devices. These included Mobiles and tablets.

My previous, now expired, licence had been installed on these machines.

Struggled for many many many hours. in desperation uninstalled Norton from the other devices.

Hey presto - all loaded up with Norton 360 in a matter of minutes. 

Hope this saves others from wasting so much time