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How to Fix OneNote Data Disappearing and Not Syncing on Windows 11
Question details
Users need to resolve an issue where OneNote notebooks appear online but fail to sync or suddenly disappear within the Windows 11 desktop application.
- Product
- Microsoft OneNote
- Device & OS
- Windows 11
- Scenario
- Syncing notebooks between OneDrive and the local OneNote application.
- Observed behavior
- Notebook data disappears locally or fails to synchronize despite being accessible on OneDrive online, frequently accompanied by sync error code 0xE00009C8.
Before attempting any troubleshooting, verify your data by logging into OneNote online via a web browser. Do not sign out or uninstall the local app if you have unsynced changes, as this will permanently delete them.
Back Up Local Data and Use OneNote for Windows 10
Since this is a known synchronization bug (Error 0xE00009C8) affecting the newer Windows 11 OneNote app, manually backing up your data and using an older, stable alternative is the safest approach.
Microsoft is currently investigating this synchronization issue. While waiting for an official patch, securing your local notes and using an unaffected app version will prevent data loss and allow you to continue working.
Log in to your OneDrive account through a web browser to locate your OneNote files and verify which notes have successfully synced to the cloud.
In your desktop app, locate any sections or pages that have not synced. Copy the text manually and paste it directly into the online version of OneNote or a separate document file.
From the OneDrive web interface, download a backup copy of your OneNote files to your local drive for safekeeping.
Open the Microsoft Store, search for 'OneNote for Windows 10', and install it. Sign in with your Microsoft account to use this version as a temporary alternative until the primary app is fixed.
Force a Manual Synchronization
Attempting to force a manual sync can occasionally bypass temporary server connection glitches.
Try WPS Office for Seamless Document Management and Syncing
If persistent synchronization issues in Microsoft Office applications are disrupting your workflow, consider switching to WPS Office. It provides a stable, lightweight, and highly compatible environment for creating and managing all your documents without the hassle of sync errors.
- 1. Download WPS Office: Visit the official WPS website and download the free installer for Windows.
- 2. Install the Suite: Run the installer and follow the on-screen prompts to set up WPS Office on your Windows 11 device.
- 3. Enable WPS Cloud: Sign in to your free WPS account to enable automatic cloud backup and sync for all your documents.
Frequently Asked Questions
What does OneNote error code 0xE00009C8 mean?
This error code indicates a persistent synchronization failure between the OneNote desktop application and Microsoft's cloud servers. It is a known bug frequently affecting the Windows 11 version of the app.
How can I recover unsynced notes in OneNote?
To recover unsynced notes, do not sign out or close the notebook. Manually copy the text of your unsynced pages and paste them into OneNote online, Word, or another text editor until the sync issue is resolved.
Is OneNote for Windows 10 a good alternative?
Yes, OneNote for Windows 10 remains supported by Microsoft and often bypasses the specific sync bugs affecting the newer Windows 11 unified desktop app, making it a highly reliable temporary alternative.
