UiBhelp's public knowledge cards

KI 0774 How do I restore missing notes?

Information on what you can try when notes are missing from OneNote.

Microsoft have their own, detailed article on multiple ways you can search for lost work related to OneNote:

https://support.microsoft.com/en-gb/office/find-my-lost-notes-32cb2bd7-afe7-44d2-a711-398a88421287?ui=en-us&rs=en-gb&ad=gb#version=onenote_for_windows_10