This time I brought you the notes in OneNote that suddenly disappeared. In fact, many people don't know how to solve it, so the editor will give you detailed steps to solve this problem, so that you can solve this problem in one go.
1. Check the location of the notebook
Check whether the notebook has been misplaced elsewhere or not effectively searched. Check all possible storage areas such as Onedrive and local devices.
2. Version compatibility issues
If OneNote or the operating system has been updated recently, old version notes may not be viewable in the new version. Try to restore the old version of OneNote or sync notes from the old version to the new version.
3. Caching problem
If problems occur when using OneNote for Windows 10, you need to check the cache settings. Verify that the notebook cache has not been cleared or overwritten by mistake.
4. Log in again or synchronize
Try logging in to your Microsoft account again, or forcing Onedrive and OneNote to sync to help retrieve lost notes.
5. Backup and restore
If none of the above methods work, consider restoring your notebook from a recent backup. Regular backups are the best protection against permanent data loss.
