A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
Test Word and Excel in Safe Mode first; if both still display the error, run an Online Repair of Microsoft 365 or Office.
1. Test Safe Mode
- Close all Office applications.
- Press Windows key + R.
- Enter the following command and select OK:
excel /safe - Repeat the process for Word:
winword /safe
Be sure there is a space before /safe. The title bar should show Safe Mode.[^1^](https://support.microsoft.com/office/lifecycle/i-get-a-stopped-working-error-when-i-start-office-applications-on-my-pc "I get a "stopped working" error when I start Office applications on my PC | Microsoft Support")
If an application opens successfully in Safe Mode:
- Select File → Options → Add-ins.
- At the bottom, select COM Add-ins under Manage, then select Go.
- Clear one add-in at a time and restart the application normally.
- Leave the problematic add-in disabled, or install an updated version.
2. Repair the complete Office installation
If Word or Excel will not start in Safe Mode—or disabling add-ins does not fix both applications—repair Office:
Windows 11
- Right-click Start → Installed apps.
- Find Microsoft 365 or Microsoft Office.
- Select the three dots → Modify.
- Select Online Repair → Repair.
Windows 10
- Right-click Start → Apps and Features.
- Select Microsoft 365 or Microsoft Office → Modify.
- Select Online Repair → Repair.
This repairs the entire Office suite, including Word and Excel. Online Repair is more complete than Quick Repair.^2^ Restart the computer afterward and test Excel and Word.
If the error remains
- Open Settings → Windows Update → Check for updates, install all available updates, and restart. Microsoft notes that incompatible or outdated device drivers can cause Office startup failures.[^1^](https://support.microsoft.com/office/lifecycle/i-get-a-stopped-working-error-when-i-start-office-applications-on-my-pc "I get a "stopped working" error when I start Office applications on my PC | Microsoft Support")
- If updating and Online Repair do not work, use Microsoft’s Office uninstall troubleshooter, restart the PC, and reinstall Office. This is the next documented step after repair.[^1^](https://support.microsoft.com/office/lifecycle/i-get-a-stopped-working-error-when-i-start-office-applications-on-my-pc "I get a "stopped working" error when I start Office applications on my PC | Microsoft Support")
References