: Open any Office app (like Word), go to File > Account , and select Change Product Key to enter your 25-character license.
End of support for Office 2016 and Office 2019 | Microsoft Support office-2016-permanent-activator-ultimate-v1-7-2022
Microsoft provides several secure and official ways to activate Office 2016: : Open any Office app (like Word), go
While these tools are popular for bypassing product keys, using them often requires disabling your computer's security features, which can expose your system to malware and other security risks. Official Activation Methods go to File > Account