Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hi,
Use the Easy Fix tool you can download from here to uninstall:
https://support.office.com/en-us/article/uninst...
Then try a reinstall:
https://support.office.com/en-us/article/downlo...
I hope this information helps. Please let me know if you have any more questions or require further help.
Regards