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Fix Microsoft Excel and Outlook Keep Crashing
Question details
The user is experiencing repeated crashing of Microsoft 365 applications, particularly Excel and Outlook, even after attempting standard reinstallation and repair.
- Product
- Microsoft 365 (Excel, Outlook)
- Device & OS
- Windows
- Scenario
- Trying to run and use Microsoft Office applications for daily work without unexpected shutdowns.
- Observed behavior
- Excel and Outlook close unexpectedly or crash repeatedly, and the issue persists despite reinstalling or repairing the Office suite.
Before proceeding, save any AutoRecovered document versions when prompted and verify that your Windows operating system is fully up to date.
Run Applications in Safe Mode to Disable Add-ins
Starting Excel or Outlook in Safe Mode bypasses third-party add-ins, allowing you to identify and disable the specific extension causing the application to crash.
Often, outdated or conflicting COM add-ins are the primary reason Microsoft Office applications crash unexpectedly.
By launching the app in Safe Mode, you can confirm if an add-in is the culprit. If the app runs smoothly in Safe Mode, you can disable add-ins one by one to find the exact cause.
Press the Windows key + R on your keyboard simultaneously to open the Run command window.
To open Excel, type 'excel /safe' and press Enter. To open Outlook, type 'outlook /safe' and press Enter. You can also use 'winword /safe' for Word or 'powerpnt /safe' for PowerPoint.
If the application opens without crashing, navigate to File > Options > Add-ins from the top menu.
At the bottom of the window, ensure 'COM Add-ins' is selected in the Manage drop-down list and click 'Go'. Uncheck all the add-ins in the list, click 'OK', and then restart the application normally.
Check Security Software and Update System Drivers
If Safe Mode does not resolve the issue, overly aggressive third-party antivirus software or outdated hardware drivers might be conflicting with Office applications.
Switch to WPS Office for a Stable, Crash-Free Experience
If Microsoft Excel and Outlook continue to crash despite troubleshooting, consider switching to WPS Office. It provides a highly stable, lightweight environment that is fully compatible with Microsoft Office file formats.
- 1. Download WPS Office: Visit the official WPS website and download the free WPS Office suite for Windows.
- 2. Install and Launch: Run the lightweight installer and open WPS Office in seconds.
- 3. Open Your Files Directly: Drag and drop your existing Excel (.xlsx) or Word (.docx) files into WPS Office to continue your work without crashes.
Frequently Asked Questions
Why does Excel only crash when I open a specific file?
If the crash is isolated to a single file, the file itself may be corrupted, or it might contain complex macros, broken links, or heavy formatting that conflicts with your current system setup.
Will I lose my data if Outlook or Excel crashes unexpectedly?
Microsoft Office includes an AutoRecover feature that periodically saves your work. When you reopen the application after a crash, the Document Recovery pane will usually appear, allowing you to restore the most recently saved version. However, unsaved changes made exactly when the crash occurred might be lost.
What should I do if Safe Mode doesn't fix the Office apps crashing?
If the application still crashes in Safe Mode, the issue is not related to add-ins. You should check for conflicting antivirus software, update your Windows display and printer drivers, or run the Microsoft Support and Recovery Assistant (SaRA) tool to diagnose deeper software corruption.
