New laptop removed office 365 demo, load office 2016 pro+, activation issue pro+

We got a new Dell laptop last week it came with windows 10 X64  and a demo/trial of office 365. We use 365 for students, but internally we use office pro+ even though the internal emails are also using 365. 

I just removed the Dell loaded office 365 from control panel and thought nothing of it.
I loaded office 2016 pro+ which worked and activated fine. I give to the user and setup their outlook and it pops up trying to get you to buy or try office 365. You can close it out and use office pro+ and that is still activated, but it's kind of annoying it does this.

I tried to run the Office 365 removal tool and it wanted to remove the pro+ which I just loaded. Has anyone seen this or know of a fix for this type issue?

Thanks.
-C