OneNote not connecting

Tim Gosling 40 Reputation points
2026-09-21T12:06:41.2633333+00:00

Although signed in, One note will not sync. I have 4 notebooks non of which will sync. I can access all notes in OneDrive on the browser and in the OneNote App.

Microsoft 365 and Office | OneNote | For home | Windows
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  1. Norah-L 11,425 Reputation points Microsoft External Staff Moderator
    2026-09-23T03:32:48.72+00:00

    Hello Tim Gosling,

    Since all four notebooks remain accessible online, the cloud copies are likely intact, and the problem may involve saved Office credentials or the local OneNote installation.

    If you are using Windows, close all Office apps, open Credential Manager > Windows Credentials, and remove entries beginning with MicrosoftOffice or MicrosoftAccount. Restart the computer, reopen OneNote, and sign in with the account that owns the notebooks. Please back up any recent offline changes before doing this.

    You can also repair Office from Settings > Apps > Installed apps > Microsoft 365 > Modify, then try Quick Repair first.

    If only certain sections continue failing, create a new section in OneNote for the web and copy the affected pages into it. A damaged page or section can sometimes block synchronization.

    If the issue remains, please open OneNote and select File > Info > View Sync Status. Check the affected notebooks for an error message or code, then share the complete code shown (if available) here so we could look into it further.

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  2. AI answer

    2026-09-21T12:06:56.41+00:00

    Since the notebooks open in OneDrive in the browser and in the OneNote app, the notebook data is reachable. The next checks are the local sync connection and sync status in OneNote for Windows.

    1. Install any available Office updates first.
    2. In OneNote, make sure automatic sync is enabled:
      • File > Options > Sync
      • Turn on Sync notebooks automatically.
    3. Try a manual sync:
      • File > Info > View Sync Status
      • Select Sync All or Sync Now for each notebook.
    4. In the Shared Notebook Synchronization window, check whether an error code appears for any notebook. If a Get Help button appears next to the error, open it and follow that article.
    5. Since the notebooks are accessible in the browser, close and reopen an affected notebook to reset the sync connection.
      • Warning: before closing a notebook that is not fully synced, copy and back up any recent unsynced notes first.
      • File > Info
      • Right-click the notebook URL under the notebook name and select Copy
      • Next to the notebook name, select Settings > Close
      • Paste the copied URL into a browser and open the notebook in OneNote for the web
      • Select Open in Desktop App to reopen it in OneNote
    6. If all notebooks still fail to sync, verify general connectivity and check whether OneDrive has a service issue.
    7. Avoid signing out of OneNote or reinstalling the app as an initial step, because that can cause data loss.

    If OneNote shows authentication error 0xE0000024, select the sync error message to refresh the session and sign in with the same account associated with the notebooks.

    AI-generated content may be incorrect. Read our transparency notes for more information.

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