The steps to access the repair tool vary depending on your operating system.
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.
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.