A family of Microsoft products that enable users to capture, organize, and reuse notes electronically.
Hi Ben R,
Thanks for the update and for detailing the troubleshooting you've already completed.
Before trying more advanced fixes, it may be worth waiting 24-48 hours and then testing again. Since your notebooks are syncing correctly on other devices and in OneNote for the web, there is a possibility this is a temporary server-side synchronization issue affecting the desktop client, which may resolve itself after Microsoft's services have fully synchronized.
If the issue remains after waiting, I recommend repairing the local Office/OneNote installation:
- Open Settings > Apps > Installed apps.
- Locate Microsoft 365 (or OneNote if installed separately).
- Select Modify and run a Quick Repair.
- If the problem persists, run an Online Repair.
If repairing does not resolve the issue, try uninstalling and reinstalling Microsoft 365/OneNote, then sign back in and allow your notebooks to resync from the cloud.
Because your notebooks remain accessible in OneNote for the web, your data should still be safely stored online while performing these steps.
Please let us know whether the issue resolves after waiting or if the repair/reinstallation changes the behavior.