Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hi Adam,
Please perform an online repair of your Office installation to resolve the issue.
Launch the Control Panel.
Choose "Uninstall a program."
Find Microsoft Office (“Microsoft 365 en-us”) on your program list and click on it.
Choose Change from the toolbar at the top of the program list.
Select “Online repair“.
Click Repair.