Office Apps Freezing

How to Fix Microsoft Office Applications Not Responding

Huda QurayshiHuda Qurayshi Oct 13, 2026 868 views

Question details

The user experiences frequent freezes and 'Not Responding' errors while using Microsoft Office applications, which only recover after a delay.

How to Fix Microsoft Office Applications Not Responding
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.
Before you start

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.

Solution 1Recommended

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.

1
Open Windows Settings

In Windows 11, click the Start button and select Settings. Navigate to Apps > Installed apps (or Apps & features in Windows 10).

2
Locate Microsoft Office

Scroll down the list of installed applications until you find Microsoft Office or Microsoft 365.

3
Select the Modify Option

Click the three dots next to the Microsoft Office entry and choose Modify from the dropdown menu.

4
Run Online Repair

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.

Perform an Online Repair for Microsoft Office
Restart Required: Always restart your computer after the repair finishes to ensure all changes take effect properly.
Free Microsoft Office alternative

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. 1. Download and Install WPS Office: Visit the official WPS website to download the free, lightweight installer and complete the setup in minutes.
  2. 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. 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.
Fully compatible with all major Microsoft Office file formats (.docx, .xlsx, .pptx).Lightweight architecture prevents freezing and high CPU usage.Familiar tabbed interface makes migrating fast and effortless.All-in-one suite handles Writer, Spreadsheet, Presentation, and PDF tasks in one window.
microsoft office alternative - wps office

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.