File Corruption & Recovery

How to Recover Unsynchronized OneNote Notes from Local Cache

Huda QurayshiHuda Qurayshi Nov 3, 2026 868 views

Question details

The user needs to retrieve OneNote notes that failed to synchronize and might only be stored temporarily in the application's local cache.

How to Recover Unsynchronized OneNote Notes from Local Cache
Product
Microsoft OneNote
Device & OS
not provided
Scenario
Experiencing synchronization failures in OneNote resulting in notes not being uploaded to the cloud.
Observed behavior
Notes created during the sync failure are missing from the main cloud notebook but may still temporarily reside in the local cache, requiring careful extraction before the cache is wiped.
Before you start

Before attempting any recovery steps, immediately locate and back up your entire OneNote local cache folder to a safe location (like your Desktop) to prevent accidental data overwriting.

Solution 1Recommended

Manually Extract and Copy Unsynchronized Notes

Safely extract your recovered pages from the cached offline notebook and transfer them into a new, properly synchronized notebook.

The local cache holds temporary data until you sign out or reset the application. Attempting to copy unsynchronized data at the section level generally fails, so you must extract the data page by page.

1
Access the cached notebook

Open the OneNote application without signing out of your account to ensure the local cache remains active and accessible offline.

2
Create a new synchronized notebook

Click 'File' > 'New' to create a brand-new, empty notebook. Ensure it is actively and successfully syncing to your cloud account.

3
Copy notes at the page level

Navigate to the unsynchronized notes. Right-click each recovered page individually, select 'Move or Copy', and choose the newly created synchronized notebook as the destination. Repeat this for all missing pages.

Manually Extract and Copy Unsynchronized Notes
Cache Deletion Warning: If you have already signed out of OneNote or reset the application, the local cache folder is deleted automatically. Without a prior manual backup, native recovery will not be possible.
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  3. 3. Enable auto-sync: Open WPS Office, sign in to your free account to enable WPS Cloud, and start creating documents that are automatically saved and synced safely.
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Frequently Asked Questions

Why can't I copy my unsynchronized OneNote sections directly?

Unsynchronized sections often contain corrupted or incomplete data structures that cause section-level copying to fail. You must copy your notes page by page into a new synchronized notebook to ensure the data transfers correctly.

Where is the OneNote local cache folder located on Windows?

On Windows, the cache is typically located at C:\Users\[YourUsername]\AppData\Local\Microsoft\OneNote\[Version]\cache. Navigating here allows you to manually copy and back up the cache folder before attempting any troubleshooting.

What happens to my unsynchronized notes if I sign out of OneNote?

Signing out of your account or resetting the OneNote application automatically deletes the local cache folder. If your notes were not synced to the cloud before doing this, they will be permanently lost unless you made a manual backup.

Can I open a copied OneNote cache file directly?

No, OneNote cache files cannot be opened directly by double-clicking them like standard document files. The data must be read organically by the OneNote application in its original cache state, and then the content must be copied out into a standard notebook.