Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
To reach a live support person for Office installation or activation issues, use Microsoft Support: Microsoft support.
If Office keeps reverting to an old account, the supported path is:
- Go to Services & subscriptions.
- Sign in with the Microsoft account that was used to set up or redeem Office.
- Locate the Office product and select Install.
If the old account is no longer accessible, Office licenses are typically associated with the Microsoft account used when the product key was redeemed. If the key has already been redeemed and the old account cannot be used, contact Microsoft Support and ask for help verifying the purchase and resolving the account/license issue.
For Office for Mac installation or activation problems, Microsoft also directs users to contact support to talk to a human.
- What to try if you can't install or activate Office for Mac
- Download, install, or reinstall Microsoft 365 or Office 2024 on a PC or Mac
- Cannot start Office apps after Office activation
- Cannot access Office 2021 installed March, 2024. Email server for that account has shut down. I have opened a new account. Is there a way I can access the Office product? I have the product key. - Microsoft Q&A
- I need help reaching a live human in Microsoft -- cannot install Office for Mac - Microsoft Q&A