Table of Contents
- Will Downgrading OneNote Solve Your Frustrating macOS Sync Problems Forever? Is Your OneNote Failing to Sync on macOS? Try These Powerful Fixes for Error 0xE000006C
- Understanding the Root Cause
- Solution 1: Update to macOS 13 or Higher
- Solution 2: Downgrade to OneNote Version 16.33
- Complete Removal of Current OneNote
- Install OneNote 16.33
- Important Considerations
- Version Compatibility Testing
- Microsoft’s Official Response
- Alternative Approaches
- Web-Based OneNote
- Third-Party Note-Taking Apps
Will Downgrading OneNote Solve Your Frustrating macOS Sync Problems Forever? Is Your OneNote Failing to Sync on macOS? Try These Powerful Fixes for Error 0xE000006C
OneNote users on older macOS versions are experiencing persistent sync failures with the error message “Sync error: please refresh this notebook to continue syncing. Refresh now” accompanied by error code 0xE000006C cig68 30115. This issue primarily affects users running macOS Catalina (10.15) and Mojave (10.14), creating a significant compatibility barrier for those unable to upgrade their operating systems.
Understanding the Root Cause
Microsoft has quietly updated OneNote’s system requirements, now mandating macOS 13 or higher for proper synchronization functionality. This change effectively abandons users on older Mac hardware who cannot upgrade beyond Catalina or Mojave, creating a frustrating situation where the app launches but fails to sync notebooks.
Solution 1: Update to macOS 13 or Higher
The most straightforward solution involves upgrading your operating system:
- Check your Mac’s compatibility with macOS 13 (Ventura) or later versions
- Navigate to System Preferences > Software Update
- Install the latest compatible macOS version
- Restart your Mac and test OneNote synchronization
This approach ensures full compatibility with current OneNote features and future updates.
Solution 2: Downgrade to OneNote Version 16.33
For users unable to upgrade macOS, downgrading OneNote provides a reliable workaround:
Complete Removal of Current OneNote
- Drag OneNote from Applications to Trash
- Navigate to ~/Library/Containers/ and delete com.microsoft.onenote.mac
- Empty Trash completely
- Restart your Mac
Install OneNote 16.33
- Download OneNote 16.33 from Microsoft’s official update history page
- Install the older version following standard macOS installation procedures
- Launch OneNote and verify sync functionality
This method has proven successful for users on macOS Catalina (10.15.7) and maintains access to existing notebooks without data loss.
Important Considerations
Version Compatibility Testing
- OneNote versions 16.40 and later exhibit the same sync problems on older macOS versions
- Version 16.33 represents the last stable release compatible with macOS Catalina and Mojave
- Intermediate versions (16.34-16.39) remain untested but likely problematic
Microsoft’s Official Response
Microsoft has not officially acknowledged this compatibility issue or provided an estimated timeline for resolution. The company appears to be prioritizing newer operating systems, potentially leaving older Mac users without official support.
Alternative Approaches
Web-Based OneNote
- Access OneNote through your web browser at office.com
- Maintains full sync functionality regardless of macOS version
- Limited offline capabilities compared to the desktop application
Third-Party Note-Taking Apps
- Consider alternatives like Notion, Evernote, or Apple Notes
- Evaluate migration options if OneNote compatibility remains problematic