Office Performance Issues

Fix Microsoft Word Slow, Lagging, or Unresponsive Issues

Nimra Malik Oct 1, 2026 870 views

Question details

The user is experiencing significant performance drops in Microsoft Word, where the application becomes slow, lags, or freezes entirely, often suspected to be caused by add-ins or recent updates.

How to Fix Microsoft Word When It is Slow, Lagging, or Unresponsive

Product: Microsoft Word
Device & OS: not provided
Scenario: Editing, opening, or typing in a Word document when the application suddenly delays inputs or becomes unresponsive for several minutes.
Observed behavior: Microsoft Word pauses for several minutes, operates abnormally slowly, or becomes completely unresponsive, hindering document editing.

Before you start

Close any non-essential background applications to free up system memory, and ensure you have saved a copy of your document to a local drive to prevent data loss during troubleshooting.

Solution 1Recommended

Launch Word in Safe Mode and Disable Add-ins

Running Word in Safe Mode bypasses add-ins and customizations. If Word runs smoothly in Safe Mode, a third-party add-in is likely causing the lag.

Third-party COM add-ins (like citation managers, grammar checkers, or PDF creators) are the most common culprits for performance degradation in Microsoft Word. Disabling them can instantly resolve responsiveness issues.

Open Word in Safe Mode

Press the Windows Key + R to open the Run dialog box. Type 'winword /safe' (without quotes) and press Enter. Word will open with 'Safe Mode' displayed in the title bar.

Test Performance

Try typing or opening a document. If the lagging or freezing is gone, proceed to the next step to identify the problematic add-in.

Access Add-ins Menu

Click on 'File' in the top-left corner, select 'Options' at the bottom, and click on 'Add-ins' in the left pane of the Word Options window.

Disable COM Add-ins

At the bottom of the window, ensure the 'Manage' dropdown is set to 'COM Add-ins' and click 'Go...'. Uncheck all boxes in the list and click 'OK'. Restart Word normally to see if the issue is resolved.

Identify the Culprit: If disabling all add-ins fixes the issue, re-enable them one by one, restarting Word each time, to pinpoint exactly which add-in is causing the lag.

Solution 2

Run an Online Repair for Microsoft Office

Use the built-in Windows repair tool to fix corrupted Microsoft Office installation files that might be causing performance drops.

Free Microsoft Office alternative

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1. Download and Install: Visit the official WPS website, download the lightweight installer, and install the software in seconds.
2. Open Your Documents: Launch WPS Writer and simply drag and drop your existing Microsoft Word (.docx) files directly into the application.
3. Enjoy Lag-Free Editing: Edit, format, and save your work seamlessly without any performance delays or freezing.

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Frequently Asked Questions

Why is Microsoft Word suddenly so slow and unresponsive?

Sudden performance issues are usually caused by a recent background update, an incompatible third-party add-in, a corrupted 'Normal.dotm' template file, or attempting to open exceptionally large files with heavy graphics.

Can the size of my document cause Word to lag?

Yes. Documents that are very large, contain dozens of high-resolution images, complex tables, or heavily tracked changes require significantly more memory. This can cause Word to struggle and pause, especially on older computers.

How can I check my current Microsoft Office version to see if I need an update?

Open a blank Word document, click on 'File' in the top-left corner, and select 'Account' from the bottom-left menu. Under 'Product Information' on the right side, you will see your version number. You can click 'Update Options' > 'Update Now' to ensure you are on the latest patch.

Will reinstalling Microsoft Office fix the lagging issue?

Reinstalling often resolves deep-seated corruption that causes lagging. However, you should try disabling add-ins and running a Quick Repair or Online Repair first, as these steps are faster and usually solve the problem without requiring a full reinstallation.

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