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Fix Microsoft 365 and Excel Crashing After Office Repair
Question details
The user is experiencing repeated crashes in Microsoft 365 and Excel, even after acknowledging and running the initial repair prompts.
- Product
- Microsoft 365 / Excel
- Device & OS
- Windows
- Scenario
- Trying to launch and use Excel after it repeatedly prompts for an application repair.
- Observed behavior
- Excel briefly works after the repair prompt but then crashes again repeatedly, requiring further intervention to stabilize the application.
Ensure all your unsaved work in other Microsoft 365 applications is saved, and close any background Office processes using the Task Manager before attempting repairs or registry modifications.
Run a Quick Repair via Windows Settings
Use the built-in Windows App settings to perform a Quick Repair, which fixes most corrupted application files without an internet connection.
Press the Windows Key + I to open Settings, then navigate to the Apps section.
Click on Installed apps and scroll down or use the search bar to locate Microsoft 365.
Click the three dots (or select the app) next to Microsoft 365 and choose Modify from the dropdown menu.
Select Quick Repair from the prompt window and click Repair to initiate the troubleshooting process.
Reset Office User Settings via Registry Editor
If Quick Repair fails, resetting the Microsoft Office registry key can resolve persistent crashing caused by corrupted user settings.
Completely Reinstall Microsoft 365
If Excel continues to crash, a clean reinstallation of Microsoft 365 is the final troubleshooting step to replace all core files.
Try WPS Office for a Stable, Crash-Free Experience
If Microsoft 365 and Excel continue to crash despite troubleshooting, consider switching to WPS Office. It provides a lightweight, highly stable environment that is completely free to use and perfectly compatible with all your existing Microsoft Office files.
- 1. Download: Visit the official WPS website and click the 'Free Download' button.
- 2. Install: Run the lightweight installer file and follow the quick setup wizard.
- 3. Open Your Files: Instantly open, edit, and save your existing .xlsx spreadsheets without crashing issues.
Frequently Asked Questions
Why does Excel keep showing a repair prompt?
This usually happens when Excel detects corrupted installation files, conflicting add-ins, or broken user registry settings that prevent the application from loading correctly.
Will renaming the Office registry key delete my Excel files?
No, renaming the registry key only resets your application preferences and user interface settings. Your personal workbooks, spreadsheets, and data files remain completely safe.
Is Quick Repair better than Online Repair?
Quick Repair is faster and works offline to fix most corrupted files, making it the best first step. Online Repair takes longer and requires an internet connection, but it performs a more comprehensive fix by redownloading core installation files.
