Use the official Microsoft Office Deployment Tool to reinstall or update your volume license software.

If you want to know more, I can help you with the specific commands, show you how to check your current Office license status, or explain how to use the ospp.vbs script for troubleshooting. Let me know what you'd like to do next!

Use the built-in repair tool in the Windows Control Panel ("Programs and Features") to fix Microsoft Office.

It allows IT professionals to "rearm" (or reset) the activation timer of a volume-licensed Office installation (like Office 2010, 2013, 2016, or later).