If using “Read Mode,” then select the “Navigation Pane” choice from the “View” tab’s drop-down menu, instead. For all document views other than “Read Mode,” then check the “Navigation Pane” checkbox in the “Show” button group. To show the Navigation pane in Word, click the “View” tab in the Ribbon. The Navigation pane in Word lets you quickly search or navigate through your document. The Navigation Pane in Word: Overview How to Show the Navigation Pane in Word
