Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hello Mahmoud Ghorbel,
Office Professional Plus 2016 used different installers depending on how the license was obtained, so the correct download link depends on its source.
Please confirm whether the product key came from:
- A personal Microsoft account purchase
- Your employer’s Workplace Discount Program/Home Use Program
- An employer, school, or other organization
- A computer seller or third-party reseller
First, sign in at Microsoft account Services & subscriptions. If Office Professional Plus 2016 appears there, select Install.
If it does not appear, please tell us which source above applies. Do not post the 25-character product key publicly.
Please also note that Office 2016 reached end of support on October 14, 2025 and no longer receives security updates.