Recently just bought a macpro and my roommate had a copy of office. I installed it, but it reached the max capacity of installations already so I uninstalled it and bought a new copy and new product key. Everything works great, but when I am on the same network as my roommate and try to open up a MS application, it tells me that I have reached the max capacity for installations under my roommates product key. The installation process does not ask to me to input my new product key so I am confused on why it is telling me I am still on his and what I need to do next.