Short answer: Confirm the signed-in account and assigned license before reinstalling Office.
Try these steps
- Open the app’s account information and note the email account in use.
- Check that this account owns the subscription or has the needed workplace license.
- Follow Microsoft’s activation troubleshooter and ask your administrator about business license assignments.
When to ask for help
Never use activation bypass tools or share your product key publicly.
Learn more
Learn more: read this article — Activate Office for Windows. Menu names and available features can vary by device, software version and account type.
Browse the Technology Help Center · Ask Basin Tech about this issue