Open in OneNote for Windows 10

The first time you open the notebook. You will need to open FROM Teams. 

1. Navigate to your Team. 

2. Select the Class Notebook tab. 

3. Select the Open in Browser tab. There should be a caret. Select Open in Desktop app. 

4. If you are given an option between two versions of OneNote, it's the first one. 

5. After a full minute of loading, your notebook should appear in the desktop app. From now on, you can use the desktop app. 

6. You will need to repeat these steps for every new notebook.