Data Backup Problems

How to Recover OneNote for Windows 10 Notebooks After Sync Ends

Chanuka Geekiyanage Sep 29, 2026 868 views

Question details

The user needs to retrieve unsynchronized notebook content from OneNote for Windows 10 after the application's support and synchronization capabilities have ended.

How to Recover OneNote for Windows 10 Notebooks After Sync Ends

Product: OneNote for Windows 10
Device & OS: Windows 10
Scenario: Attempting to retrieve and migrate unsynchronized notebooks to a supported application after OneNote for Windows 10 stopped syncing.
Observed behavior: Unsynchronized notebook content remains trapped on the old computer or in local backups, failing to upload to the cloud.

Before you start

Ensure you have access to the original Windows 10 computer where the unsynchronized OneNote notebooks were last opened, as well as your Microsoft account credentials.

Solution 1Recommended

Recover from Local Backups and Migrate to New App

Use this method to extract your unsynced local data directly from the old computer and move it to the currently supported OneNote desktop application.

Because OneNote for Windows 10 is no longer supported, any notebooks that failed to sync to the cloud might still have local cache or backup files on your hard drive. You must manually extract these sections and copy them over to the newer OneNote application.

Open Local Backups

On your old Windows 10 computer, launch the OneNote application. Click on 'File' in the top ribbon and select 'Open Backups' to view locally saved sections.

Locate Missing Content

Browse through the available backup folders. Double-click the section files (.one) to open them as temporary sections in your OneNote interface to verify if they contain your missing notes.

Create a New Notebook

Open the currently supported OneNote app (formerly OneNote 2016 or simply 'OneNote') on your computer and create a brand-new notebook connected to your active OneDrive account.

Copy Sections Manually

Right-click the recovered temporary sections and select 'Move or Copy'. Choose your newly created notebook as the destination and click 'Copy'. Wait for the new app to successfully sync the content to the cloud.

Recover from Local Backups and Migrate to New App

Migration Complete: Once the sections are successfully copied and synced in the new app, you can safely uninstall the outdated OneNote for Windows 10 application.

Solution 2

Check Cloud and Version History

Use this approach if you no longer have access to the old computer and need to check if partial syncs or older versions exist in the cloud.

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Frequently Asked Questions

Where are OneNote local backups stored on Windows 10?

By default, OneNote local backups are typically stored in 'C:\Users\[YourUsername]\AppData\Local\Microsoft\OneNote\[Version]\Backup'. You can navigate to this folder directly using File Explorer if you cannot open the application.

Can I still use OneNote for Windows 10?

OneNote for Windows 10 has reached its end of support. While the app may still open on older systems, it will no longer receive updates, and cloud synchronization features may fail. It is highly recommended to migrate to the standard OneNote desktop application.

Why did my OneNote stop syncing?

Sync issues in OneNote for Windows 10 usually occur due to network problems, out-of-date application versions, insufficient OneDrive storage, or because the application itself has been deprecated by Microsoft and lost server support.

How do I know if my notebooks have unsynchronized changes?

Unsynchronized notebooks typically display a yellow warning triangle or a sync error icon over the notebook name. If you hover over the icon, it will display a message indicating that the notebook hasn't synced properly.

Migration & Recovery