Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hello Bob smith,
I understand that you bought a refurbished Windows 11 PC and are trying to install Office 2016 with your product key, but you are not sure why Office 2007 installs while Office 2016 does not.
Please note that Office 2016 has already reached end of support, so it no longer receives security updates. However, if you still have a valid Office 2016 license, you may still be able to reinstall it from the Microsoft account or product key linked to that copy.
Here are some suggestions you can try:
First, go to Office setup, sign in with your Microsoft account, and enter the 25-character Office 2016 product key if it has not been redeemed before. Redeeming the key links Office to that Microsoft account, so you can use the same account to install or reinstall Office later.
If the key was already redeemed, do not try to redeem it again. Instead, go to Services & subscriptions, sign in with the same account used for Office 2016, choose Office apps, find Office 2016, and select Install.
If Office 2016 does not appear there, or the install still does not complete, please let me know the exact Office 2016 edition you have, such as Office Home & Student 2016, Office Home & Business 2016, Professional Plus, or another edition. This matters because some editions use different installation or activation methods.
Also, could you share the exact message you see when trying to install or activate Office 2016?
One more thing to check is whether any other Office version is already on the PC, such as Office 2007, a Microsoft 365 trial, or preinstalled Office. If yes, removing the older or conflicting Office version first may help avoid install or activation confusion.
I look forward to your additional information so we could determine the best next steps.
Thank you so much for your patience!