Fix OneNote Crashing on MacBook Air M1 (macOS Big Sur)
Question details
Microsoft OneNote immediately crashes on a MacBook Air with an M1 processor, and standard fixes like reinstalling, clearing cache, or Safe Mode do not work.

- Product
- Microsoft OneNote
- Device & OS
- macOS Big Sur (M1)
- Scenario
- Opening and attempting to use Microsoft OneNote on a recently updated or newly configured M1-chip MacBook Air.
- Observed behavior
- The application crashes instantly upon launch with an ARM64 crash report. Reinstalling, deleting files, updating Office, and using Safe Mode fail to resolve the crash.
Ensure your macOS is fully updated to the latest version of Big Sur and back up any unsynced local notebooks to prevent data loss before modifying your user profiles.
Create a New macOS User Account
Creating a new user profile bypasses potential corruption in your current macOS account, which is often the root cause when Safe Mode and reinstalls fail to fix the crash.
When an application crashes exclusively under one user account even in Safe Mode, it typically indicates that the user profile's background services or core preference files are corrupted. Creating a fresh administrator account serves as both a diagnostic step and an immediate workaround.
Click the Apple logo in the top-left corner of your screen and select System Preferences, then choose Users & Groups.
Click the lock icon at the bottom left of the window and enter your Mac administrator password to allow changes.
Click the Add (+) button below the list of users. Select 'Administrator' from the New Account drop-down menu, fill in the account details, and click Create User.
Log out of your current Apple account via the Apple menu. Log in to the newly created user account, launch OneNote, and check if the crash persists.

Force Update Microsoft Office and AutoUpdate
Manually checking for and applying the latest Office updates ensures compatibility with Apple's M1 architecture, replacing older Intel-based binaries.
Switch to WPS Office for a Stable Mac Experience
If Microsoft OneNote and other Office apps continue to crash or suffer from profile corruption issues on your M1 MacBook, consider switching to WPS Office. It provides a lightweight, highly reliable suite that runs efficiently on macOS.
- 1. Download for Mac: Visit the official WPS website and download the macOS installer.
- 2. Install WPS Office: Open the downloaded .dmg file and drag the WPS Office icon into your Applications folder.
- 3. Open Your Files: Launch WPS Office and immediately open your existing documents without any format conversion.

Frequently Asked Questions
Why does OneNote crash only on my main macOS account?
User-specific crashes usually indicate corrupted preference files, broken cache directories, or conflicting background startup items tied specifically to your macOS profile. Since these files aren't shared across accounts, a fresh user profile remains unaffected.
Does Microsoft Office run natively on M1 Macs?
Yes, Microsoft released native support for Apple Silicon starting with Office version 16.44. Ensure you are running version 16.44 or later to avoid ARM64 translation crashes that can occur when running under Rosetta 2.
Will creating a new Mac user profile delete my existing files?
No. Creating a new user account does not delete or modify files in your original account. You can easily switch between accounts or use the Shared folder to transfer files from the corrupted profile to the new one.
How do I completely clear the OneNote cache on a Mac?
Open Finder, press Cmd+Shift+G, and type '~/Library/Containers/'. Locate the 'com.microsoft.onenote.mac' folder and move it to the Trash. Empty the trash and restart your Mac to force OneNote to build a fresh cache.




