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Office for Mac Issues

How to Fix Word for Mac 16.91 Randomly Stops Responding

Maira MehtabMaira Mehtab Sep 27, 2026 869 views

Question details

Users are experiencing random freezing or unresponsiveness when using Microsoft Word for Mac version 16.91.

Product
Microsoft Word for Mac 16.91
Device & OS
macOS 15.1.1
Scenario
Editing documents in Word for Mac after a recent software update or during system startup.
Observed behavior
The Word application randomly stops responding or freezes, interrupting the user's workflow.
Before you start

Before attempting these fixes, force quit the application if it is currently frozen (Option + Command + Esc) and check if you can recover your document from AutoRecovery upon reopening.

Solution 1

Isolate the Issue to a Specific Document

Determine if the freezing issue is caused by a single corrupted document or if it affects the entire Word application.

1
Create a new document

Open Word for Mac and create a new, blank document.

2
Test for unresponsiveness

Type some text, format it, and navigate through the menus to see if the application freezes.

3
Transfer content if isolated

If only one specific document is freezing, the file itself may be corrupted. Copy its text (without formatting) and paste it into a new document to continue working safely.

Free Microsoft Office alternative

Switch to a Stable Office Alternative for Mac

If Word for Mac continues to freeze on macOS 15.1.1 and interrupts your work, try WPS Office. It is a free, lightweight, and highly compatible alternative that ensures a smooth and stable document editing experience on macOS.

  1. 1. Download the App: Visit the official WPS Office website and download the macOS version.
  2. 2. Install WPS Office: Open the downloaded package and drag the WPS Office icon into your Applications folder.
  3. 3. Open Your Documents: Launch WPS Office and directly open your existing .docx files to continue working without freezing.
Free and lightweight Office suite optimized for macOSFully compatible with Microsoft Word (.docx) formatsStable performance without random freezing issuesFamiliar user interface for a seamless transition
microsoft office alternative - wps office

Frequently Asked Questions

Why did Word for Mac 16.91 suddenly start freezing?

This can happen due to bugs introduced in the recent 16.91 update, specific conflicts with macOS 15.1.1, corrupted document files, or incompatible background software loading at system startup.

How do I force quit Word when it stops responding on my Mac?

Press the Option + Command + Esc keys simultaneously to open the Force Quit Applications window. Select Microsoft Word from the list and click the 'Force Quit' button.

Does Safe Mode fix the Word for Mac freezing issue permanently?

No, Safe Mode is primarily a diagnostic tool. If Word works without freezing in Safe Mode, it indicates that a startup item or third-party background application is causing the conflict. You will need to identify and remove or update that conflicting software.