If you are, try updating it.
It will start downloading updates and then apply them. This can take a few minutes but is usually done in less than 10 minutes. It will ask you to close other office programs you have open like Word. It will update and then whatever is going wrong will work.
I discovered from a Microsoft technical support rep that this is the first troubleshooting step she does when there is a problem. So after learning that, I started to do it with other problems I was working with Microsoft on. Turns out that it solved those problems too.
So why am I sharing this with you? It is interesting that Microsoft says that this automatic updating should be transparent to the user. That is, the end customer should never know it is happening. I think however that because these are older machines that the computer doesn’t have the free resources to do this. So I am seeing this often with people who upgrade to Office 2016 on a computer that is not new.
New computers also have this update problem so it is probably due to a slow network as well. I have seen computers that are at home like laptops not have this issue. So it is clearly a combination of needing a computer that is relatively recent, and a good internet communication.
It is interesting isn’t it that companies often state minimum requirements to make something work but it often means its not useable. For this software to work, yes it works, but having to run around and fix issues like this make the software impractical. The bottom line is that you don’t want to install Office 2016 on a computer that you think is old, or in a network that is slow.