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How to Fix OneNote Sync Error 0x88ffc008 Without Losing Work

Algirdas JasaitisAlgirdas Jasaitis Oct 23, 2026 868 views

Question details

The user needs to recover unsynced notes and restore synchronization when OneNote displays error code 0x88ffc008 after a notebook has been inactive.

How to Fix OneNote Sync Error 0x88ffc008 Without Losing Work
Product
Microsoft OneNote
Device & OS
not provided
Scenario
Attempting to sync a OneNote notebook to OneDrive or SharePoint after it has been inactive for a period of time.
Observed behavior
The synchronization fails with error code 0x88ffc008, leaving recent content unsynchronized and at risk of being lost.
Before you start

Manually copy any newly added or unsynced notes and paste them into a local text editor like Notepad or WordPad to ensure your recent work is backed up before troubleshooting.

Solution 1Recommended

Sync Unsaved Notes via OneNote for the Web

Manually transfer unsynchronized sections to the web version of OneNote and force a fresh sync to your desktop application.

This method forces a reconnection between the cloud server and your desktop client. By copying your unsynced notes to the web version first, you protect your data from being overwritten or lost when the desktop application is closed.

1
Access OneNote for the Web

Open your web browser, log in to your OneDrive for Business or SharePoint Online account, and open the affected notebook in OneNote for the web.

2
Verify synchronized content

Compare the web version of the notebook with your desktop application to identify exactly which sections or pages have failed to sync.

3
Copy unsynchronized sections

Manually copy the text, images, or sections from your desktop application that did not sync, and paste them into the corresponding pages in OneNote for the web.

4
Restart the desktop client

Once you have verified that all recent work is safely stored in the web version, close the OneNote desktop client completely.

5
Force a fresh synchronization

In OneNote for the web, click the 'Open in Desktop App' button on the ribbon. This will launch your desktop client and force it to establish a new, synchronized connection with the cloud server.

Check your OneNote version: Before starting, verify whether you are using OneNote for Windows 10 or OneNote 2016, as the interface for checking sync status (usually right-clicking the notebook name and selecting 'Sync Status') may vary slightly.
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Frequently Asked Questions

Why does OneNote sync error 0x88ffc008 happen?

This error typically occurs when a notebook has been inactive for an extended period. The authentication token or the connection between the OneNote desktop client and the OneDrive/SharePoint server times out, preventing new changes from uploading.

Will I lose my notes if I close OneNote during a sync error?

If you close the desktop application while a sync error is active, any unsaved or unsynchronized changes may be permanently lost. You should always manually copy unsynced content to a safe location, like a local text document or the web version of OneNote, before closing the app.

How can I check the sync status of my OneNote notebooks?

In OneNote 2016, you can right-click the name of your notebook and select 'Notebook Sync Status' or go to File > Info > View Sync Status. This window will show you exactly which sections are experiencing errors.