This method works for most Office versions on a Windows PC:
Find the shortcut icon for your Office application.
Press and hold the CTRL key and double-click the application shortcut.
Click Yes when a window appears asking if you want to start the application in Safe Mode.
NOTE: To stop Office Safe Mode, exit and restart your Office application. It will start in normal mode unless there's a problem opening the application.
This method works for most Office versions on a Windows PC:
Right-click the Start button (lower-left corner) in Windows, and click Run.
Alternatively, you can press the Windows logo key and the R key on your keyboard.
In the Run box, type one of these commands:
For Excel: Type excel /safe, and click OK.
For Outlook: Type outlook /safe, and click OK.
For Word: Type winword /safe, and click OK.
For PowerPoint: Type powerpnt /safe, and click OK.
For Publisher: Type mspub /safe, and click OK.
For Visio: Type visio /safe, and click OK.
NOTE: To stop Office Safe Mode, exit and restart your Office application. It will start in normal mode unless there's a problem opening the application.