Hello,

My boss just ordered 100 Office 2013 Professional Plus licences an he wants to install it on 80 computers that we just bought. 

My concern is:

We don't need Office in all of the computers but he still wants to install it in case someday one of our users decide to use Office on one of those computers. I don't think this is smart but he keeps telling me that if Office is installed but not in use then we are not using that license. I know there are some applications that work that way but I don't know if that is the case with Office. My understanding is that when you install Office and activate a license, that license is tied to that Office installation until you uninstall it.

By the way, the licenses he bought are volume licenses. Just one product key.

Can somebody clarify this for me?

Thanks a bunch!

Sounds like he bought a KMS volume key and if that is the case then he is correct.  You will need to setup a "server" to be a KMS server so clients can access the key they need to run Office.  See the links below for more information and a how to.

http://technet.microsoft.com/en-us/library/ff793434.aspx

http://blogs.technet.com/b/odsupport/archive/2013/01/03/how-to-setup-microsoft-office-2013-kms-host-on-windows-server-2008-r2.aspx