:If you have a new key to enter, open any Office app (like Word), go to File > Account , and select Change Product Key or Switch License . Security Warning
: Check the card or sticker inside the original packaging. How to Activate Version 18.1903 Once you have your 25-digit code, follow these steps: Open an App : Launch Word or Excel. Navigate to Account : Go to File > Account . microsoft office version 18.1903 product key