I am trying to install office 2013 that was downloaded from the Microsoft website, the first two installs went okay, the third computer never asks to install a product key. Now after office installs it says it cannot activate because the key has been previously used.
I have searched on how to change the product key, going to control panel, add remove programs, right-click on the Microsoft office 2013, click change, The only options I have is for a quick repair or online repair.
If I type in
cscript "C:\Program Files (x86)\Microsoft Office\Office15\OSPP.VBS" inpkey:KEYHERE
I get "unsupport command passed"
Does anyone have any suggestions on any other way to input the product key for Microsoft office 2013
PS: I do have a valid key, if it would just let me put it in