OneDrive Error Codes

How to Fix OneNote Sync Error 0xE000006B blg57 with OneDrive

Aamir Naveed AkramAamir Naveed Akram Oct 9, 2026 869 views

Question details

The user is unable to sync a OneNote notebook stored in OneDrive to the desktop application, receiving error code 0xE000006B blg57, despite the web version showing the latest changes.

How to Fix OneNote Sync Error 0xE000006B blg57 with OneDrive
Product
Microsoft OneNote, OneDrive
Device & OS
not provided
Scenario
Synchronizing a OneNote notebook stored in OneDrive using the desktop application.
Observed behavior
OneNote cannot connect to the server, halting sync and displaying error 0xE000006B blg57.
Before you start

Log in to OneNote for the web and verify that all your recent changes are safely synced online. Copy any unsynchronized text from your desktop app to a temporary document to prevent data loss.

Solution 1Recommended

Clear the Local OneNote Cache

Clearing the local cache resolves server connection issues by forcing OneNote to redownload a fresh copy of your notebook from OneDrive.

Local cache corruption is a common cause for sync interruptions between the desktop app and OneDrive.

1
Close Notebooks and Quit App

Close all open notebooks within the application and completely quit the OneNote desktop application.

2
Locate Cache Folder

Press Windows + R, type '%localappdata%\Microsoft\OneNote\16.0', and press Enter. Locate the folder named 'cache'.

3
Move or Delete Cache

Move the 'cache' folder to your desktop or rename it to 'cache.old' to force OneNote to rebuild it.

4
Restart and Reopen

Restart your computer, launch OneNote, and open your notebooks directly from OneDrive to trigger a fresh sync.

Clear the Local OneNote Cache
Cache Folder Location: The folder path '16.0' corresponds to OneNote 2016 and Microsoft 365. If you use an older version, the folder name might be '15.0' or '14.0'.
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Frequently Asked Questions

What does error 0xE000006B blg57 mean in OneNote?

This error indicates that the OneNote desktop application is having trouble communicating with the OneDrive server, preventing your local notebook from synchronizing with the cloud.

Will clearing my OneNote cache delete my notes?

Clearing the cache will not delete notes that have already been synced to OneDrive. However, any unsynchronized changes in your desktop app will be lost if you do not manually copy them somewhere else first.

Why does OneNote sync work on the web but not on the desktop app?

The web version accesses the data directly from the server. Desktop app sync issues usually stem from local cache corruption, outdated software versions, or local network configuration blocks.