How to Recover a Shared OneNote Notebook from a Deleted User
Question details
The user needs to regain access to a shared OneNote notebook that was owned by a user whose Microsoft account has been deleted.
- Product
- Microsoft OneNote
- Device & OS
- not provided
- Scenario
- Opening a previously shared notebook in the OneNote app or web browser after the original owner's account was deleted.
- Observed behavior
- The system returns a 404 File Not Found error, preventing the user from viewing or accessing the notebook's contents.
Ensure you have the contact information for your organization's Microsoft 365 IT administrator, as this recovery process requires administrative privileges. Act quickly, as deleted accounts have a limited retention period before permanent data loss occurs.
Contact a Microsoft 365 Admin for OneDrive Recovery
Since the notebook is stored in the deleted user's OneDrive, a Microsoft 365 administrator must intervene to restore access before the retention period expires.
When a Microsoft 365 user account is deleted, their associated OneDrive is marked for deletion but is temporarily kept in a retention state (usually 30 days by default). During this window, an administrator can recover the OneDrive or transfer the files to another user.
Locate the contact information for your company's or school's IT helpdesk or Microsoft 365 administrator.
Send a request to the administrator including the exact name of the inaccessible OneNote notebook, the original URL if you have it, and the name of the deleted user who owned it.
Ask the administrator to check if the deleted user's OneDrive is still within its active retention period and request that they restore it or grant you a temporary delegation link.
Once the admin provides access, open the notebook and immediately copy its sections to a new notebook stored in a shared location (like SharePoint or your own OneDrive) to prevent future data loss.
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Frequently Asked Questions
Why do I get a 404 error when opening a shared OneNote notebook?
A 404 'File Not Found' error typically occurs when the notebook has been moved, deleted, or if the original owner's account and associated OneDrive have been deleted by a system administrator.
How long is a deleted user's OneDrive data kept in Microsoft 365?
By default, Microsoft 365 retains a deleted user's OneDrive data for 30 days. However, administrators can configure this retention period to be longer. Once the retention period ends, the data is permanently erased.
Can I recover a OneNote notebook without contacting my IT administrator?
If the notebook was owned by a deleted corporate or school account, you cannot recover it yourself. Only a Microsoft 365 administrator has the necessary backend permissions to access and restore the deleted user's OneDrive files.
How can I prevent losing access to shared OneNote notebooks in the future?
To prevent data loss when an employee leaves, always move or copy important shared notebooks to a centralized shared location, such as a SharePoint Document Library or a Microsoft Teams channel, rather than keeping them in an individual user's personal OneDrive.
