Office for Mac Issues

Fix OneNote Crashing on macOS Sonoma After an Update

Amos Gikunda Oct 9, 2026 870 views

Question details

The user needs to stop Microsoft OneNote from persistently crashing on a MacBook running macOS Sonoma after installing a recent update.

How to Fix OneNote Crashing on macOS Sonoma After an Update

Product: Microsoft OneNote
Device & OS: macOS Sonoma
Scenario: Attempting to launch or use Microsoft OneNote after a system or application update.
Observed behavior: OneNote crashes immediately or during use, generating an EXC_BAD_INSTRUCTION error report. Standard troubleshooting such as resetting the app and deleting caches has failed.

Before you start

Ensure your Mac is connected to the internet and verify that all your recent notes have successfully synced to OneDrive before moving any library files.

Solution 1Recommended

Clear the OneNote Container Folder

Removing the corrupted cache and preference files from the hidden Library folder can force OneNote to rebuild its data and resolve application crashes.

macOS stores application settings and caches in a hidden Containers folder. If these files become corrupted during an update, the application will fail to launch or crash unexpectedly.

Open the Go to Folder menu

Click on your desktop to activate Finder, select the Go menu at the top of your screen, and click Go to Folder (or press Command+Shift+G on your keyboard).

Navigate to the Containers folder

Type ~/Library in the search bar and press Return. In the Library directory, locate and open the folder named Containers.

Move the Microsoft OneNote folder

Find the folder named Microsoft OneNote. Click and drag this folder to your Mac's desktop to serve as a backup.

Restart the application

Relaunch Microsoft OneNote from your Applications folder or Launchpad to see if the crash is resolved.

Safe Reset: Moving the container folder does not delete your cloud-synced notebooks. It only resets local application preferences.

Solution 2

Test with a New macOS User Profile

Creating a temporary user profile helps determine if the crashing issue is system-wide or isolated to corrupted settings in your primary macOS account.

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1. Download the Mac installer: Visit the official WPS Office website and download the installation package designed specifically for macOS.
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Frequently Asked Questions

What does the EXC_BAD_INSTRUCTION error mean in OneNote?

This error typically indicates that the application tried to execute an invalid or corrupted command. It is usually caused by buggy application updates, incompatible local cache files, or conflicts with the specific macOS version.

Will moving the OneNote container folder delete my class notes?

No. Your notebooks are safely stored in your OneDrive cloud account. Moving the local container folder only resets your app preferences and local cache. Once you reopen the app and log in, your notes will sync back.

What should I do if OneNote still crashes on a brand-new user profile?

If it crashes across all macOS profiles, the issue lies with the application installation or a macOS system bug. You should completely uninstall OneNote, download the latest version directly from the Mac App Store, and ensure macOS Sonoma is fully updated.

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