Restore Missing Content after migrating from OneNote for Windows 10 to OneNote on Windows

Restore missing Sections from Backup Folder

1. Open OneNote Desktop.
   Ensure the user is using the Desktop version of OneNote (not OneNote for Windows 10 or Web).

2. Go to the Backup Folder:

   • Select File > Options > Save & Backup

   • Under Backup Folder, note the location path

   • Open File Explorer and navigate to that path

3. Locate the Most Recent Backup:

   • Open the relevant folder for the notebook name

   • Look for .one files (each file is a section backup)

4. Create a New Notebook:

   • In OneNote Desktop, go to File > New

   • Choose a location and create a new notebook

5. Open and Move Sections:

   • Double-click each .one file in the backup folder to open it in OneNote

   • Use Right-click > Move or Copy to move the section into the newly created notebook

6. Repeat for Each Section as Needed.