Repair an Office application
Repair Office from the Control Panel
The steps to access the repair tool vary depending on your operating system.
Choose your operating system from the tabs below:
Right-click the Start button (lower-left corner), and select Programs and Features on the pop-up menu.
Right-click the Microsoft Office product you want to repair, and select Change.
NOTE: If you have a suite such as Office 365 Home or Office Home and Student 2013 or 2016, search for the suite name, even if it's just a particular application you want to repair such as Word or Excel. If you have a standalone application such as Word or Excel, search for the application name.
From the "How would you like to repair your Office Programs" screen, select Online Repair to make sure everything gets fixed, and then select Repair. The Quick Repair option is also available, which runs faster but only detects and then replaces corrupted files.
NOTE: If your copy of Office is MSI-based, select Repair and then click Continue. If you need help figuring out if your Office is Click-to-Run or MSI-based, follow these steps below.
Follow the instructions on the screen to complete.