Microsoft Office Forums - View Single Post - [Solved] if I re-install Windows with a new product key, will my old Office key still work?

macropod · 09-26-2012, 08:45 PM

If you reinstall Windows, Office will need to be reinstalled also. For that, you'll need the Office Product Key.

Question: how do you know Windows is not already using the Windows product key on the laptop case?

FWIW, unless you're installing a different Windows version/edition, it shouldn't make any difference which Windows product key you use (unless you try to use a non-genuine one).