How to Fix Microsoft Office Applications Not Responding
Question details
The user experiences frequent freezes and 'Not Responding' errors while using Microsoft Office applications, which only recover after a delay.

- Product
- Microsoft Office (Word, Excel, etc.)
- Device & OS
- Windows 10 and 11
- Scenario
- Working on documents or spreadsheets when the application suddenly becomes unresponsive.
- Observed behavior
- The Office application window grays out, displays a 'Not Responding' message in the title bar, and temporarily stops functioning before either recovering or crashing.
Save any recovered documents and close all running Office applications before attempting to repair or modify your installation to prevent data loss or file conflicts.
Perform an Online Repair for Microsoft Office
Using the built-in Windows repair tool can resolve most issues caused by corrupted or damaged Office installation files.
Microsoft Office includes a built-in repair utility that scans and fixes missing or damaged application files. The 'Online Repair' option is usually more thorough than the 'Quick Repair' option.
In Windows 11, click the Start button and select Settings. Navigate to Apps > Installed apps (or Apps & features in Windows 10).
Scroll down the list of installed applications until you find Microsoft Office or Microsoft 365.
Click the three dots next to the Microsoft Office entry and choose Modify from the dropdown menu.
Select 'Online Repair' from the prompt and follow the on-screen instructions to complete the process. This will download and reinstall the missing or damaged files.

Disable Problematic COM Add-ins
Third-party add-ins can sometimes conflict with Office, causing it to freeze. Starting in Safe Mode and disabling them can isolate the issue.
Use Microsoft Support and Recovery Assistant
If standard repairs fail, completely uninstalling and reinstalling Office using Microsoft's official SaRA tool is the next best step.
Switch to WPS Office for a Stable, Lightweight Experience
If Microsoft Office continues to freeze, crash, or run slowly on your device, consider switching to WPS Office. It is a highly compatible, fast, and free alternative that requires fewer system resources while offering a familiar interface.
- 1. Download and Install WPS Office: Visit the official WPS website to download the free, lightweight installer and complete the setup in minutes.
- 2. Open Your Existing Files: Launch WPS Office and drag and drop your existing Microsoft Word, Excel, or PowerPoint files directly into the workspace.
- 3. Edit and Save Seamlessly: Edit your documents without experiencing freezing or lagging, and save them in their original Microsoft formats to easily share with others.

Frequently Asked Questions
Why does Microsoft Excel keep saying 'Not Responding'?
This usually happens due to extremely large file sizes, conflicting third-party add-ins, outdated software, or corrupted Office installation files. Running Excel in Safe Mode can help identify if an add-in is the culprit.
Will repairing Microsoft Office delete my personal files?
No, performing a Quick Repair or an Online Repair only fixes the program files. Your personal documents, spreadsheets, presentations, and account settings will remain completely untouched.
How do I start Microsoft Word in Safe Mode?
Press the Windows key + R to open the Run dialog box, type 'winword /safe' (without the quotes), and press Enter. This launches Word without loading any custom templates, extensions, or add-ins.




