Closing a dialog that is open in OneNote is a simple process that can be done in a few steps. A dialog is a window that appears on top of the main OneNote window and typically contains options or information. Dialogs can be opened by clicking on a button or link in the main OneNote window, or by pressing a keyboard shortcut.
To close a dialog in OneNote, simply click on the “X” button in the top-right corner of the dialog window. You can also press the Esc key on your keyboard to close the dialog.