Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hi NguyễnPhước
Use this tool from Microsoft to remove all remnants of any previous Office Installation:
https://support.office.com/en-us/article/Uninst...
Restart your PC
Go to http://www.office.com and if you're not already signed in, select Sign in
On the Office home page, select Install Office - Install