Can I update 2 seperate norton accounts with one disk

Hello

 

I have a complicated situation here... I have used up all three of my norton liscences (one on a computer that is no longer with us). My father just got a computer, that comes with 15 months of norton already on it (HP shop). When my norton expires (3 months), I would like to renew it. If I renew my account can I add those renewed subscription days to my fathers account, so we dont have to buy 2 seperate liscences. As I said one computer is gone so I will not be renewing norton on that.

 

Any help would be great, thank you!