How to Recover an Unsynchronized OneNote Notebook After Resetting the App
Question details
The user needs to recover a OneNote notebook that was lost after resetting the application because it had never successfully synchronized to the cloud.
- Product
- Microsoft OneNote
- Device & OS
- Windows
- Scenario
- The user reset the OneNote application to resolve performance or sync issues, which cleared locally stored app data.
- Observed behavior
- While synchronized notebooks were restored successfully upon logging back in, a notebook that never synchronized successfully is missing from the app.
Ensure you do not uninstall or reset the OneNote app again, as this could permanently delete any remaining local backup files on your hard drive.
Locate and Restore from the Local OneNote Backup Folder on Windows
Use this method to find automatic local backups that the OneNote desktop application creates on your Windows PC.
By default, the OneNote desktop app periodically backs up your notebooks to a local directory on your Windows computer. If your notebook didn't sync to the cloud, accessing this local folder is your best chance for recovery.
Press the Windows key + E on your keyboard to open File Explorer.
In the File Explorer address bar, paste the following path: C:\Users\<username>\AppData\Local\Microsoft\OneNote\<version>\Backup. Replace <username> with your actual PC username and <version> with your OneNote version number (e.g., 16.0).
Look for a folder or file matching your missing notebook's name. Copy this folder or the .one backup files inside it to a safe location, such as your Desktop.
Double-click the copied backup file, or open OneNote, go to File > Open, and browse to the copied file on your Desktop to restore your lost notes.
Verify Notebook Availability on OneDrive.com
Sometimes a notebook may have partially synced, or the synchronization error was strictly localized to the desktop app. Checking the web version confirms its actual cloud status.
Never Lose Your Documents Again with WPS Office
While recovering unsynced Microsoft OneNote files can be complex, WPS Office offers a stable, lightweight, and highly compatible alternative for your document and note-taking needs. Enjoy seamless cloud synchronization, automatic document backups, and familiar formatting tools across all your devices without the persistent sync errors.
- 1. Download WPS Office: Visit the official WPS Office website and click the free download button for your operating system.
- 2. Install and Launch: Run the installer and open WPS Office. The familiar interface allows you to start working immediately.
- 3. Sign In to Sync: Create or sign in to your WPS account to enable automatic cloud backup for all your important files.
Frequently Asked Questions
Why did resetting the OneNote app delete my unsynced notebook?
Resetting a Windows app clears all of its locally stored app data and cache. If a notebook had not successfully synced to OneDrive, its only existing copy was inside that temporary local app cache, which gets wiped out during the reset process.
How often does OneNote create local backups?
By default, the OneNote desktop application is configured to back up your notes automatically once a week. However, you can change this interval to daily or even hourly by navigating to File > Options > Save & Backup within the app.
What does OneNote sync error E0000642 mean?
Error E0000642 typically indicates a temporary server issue or that the Microsoft service is experiencing high traffic, preventing OneNote from uploading your local changes to OneDrive. You can usually resolve this by waiting and trying again, or by signing out and signing back into your Microsoft account.
