A family of Microsoft products that enable users to capture, organize, and reuse notes electronically.
Dear @Pegah,
Thank you for reaching out to Microsoft Q&A forum.
I'm truly sorry to hear about the issue with your OneNote notebooks. Losing semesters’ worth of notes is incredibly stressful, and I completely understand how concerning this situation is. As a forum moderator, I genuinely wish I could directly access your account or delve into the backend systems to diagnose and fix this for you. However, our role here is limited to providing general guidance and solutions that can be applied by users.
From your description, it appears that when you signed out of the OneNote app, the local cache that contained your unsynced notes was cleared. The reduction in the app’s storage from 3.5GB to 230MB strongly suggests that the locally stored notebooks were removed during the logout process. Because these notes were never synced to the cloud, signing back in did not restore them.
There is still a chance, although a small one that something may remain. You can check whether your school’s OneDrive contains any copies or items in its recycle bins, and it may also help to contact your school’s IT department to see if they can access any backups related to your account. Educational institutions sometimes retain snapshots or backups that are not visible to end users.
Additionally, the Global Admin in your organization can create a service request with Microsoft Support. A technical support engineer can perform a remote session to investigate the situation, verify the backend configurations, and run any necessary synchronization tools to resolve the problem. If the issue requires further attention, they can escalate it to a specialized team for deeper analysis. Ask The Global Admin in your organization to create a service request with Microsoft support to get advanced technical assistance and diagnostics. For detailed instructions on how to get support, please refer to Get support - Microsoft 365 admin. If you don't know who your IT administrator is, please refer to this article: How do I find my Microsoft 365 admin? - Microsoft Support
For additional assistance, use this link to find the appropriate contact number from your region: Global Customer Service phone numbers - Microsoft Support.
I truly hope you’re able to recover your notes quickly. Please know that even though I can't directly intervene, directing you to the correct, specialized support is the most effective help I can provide from my position. Thank you for your patience and understanding. I'm looking forward to your reply.
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