Sometimes you delete a bookmark while navigating among the different parts of the document because you can’t see bookmarks. To make bookmarks visible, click
File tab and choose
Options. The “Word Options” dialog box appears, click the
Advanced from the left pane, check the
Bookmarks box from the right pane under the “Show document content” heading, and click the
Bookmarks that have contents appear with brackets around them. Bookmarks that are just points appear as heavy I-beams.