Normally, you will want to select only published content, because you want users to see only nodes that have been published. However, as an admin, you could very well want to view unpublished content as well. Fortunately, there is a way to account for both requirements using a filter made just for this job.
On the views list page:
Navigate to the views list (
admin/structure/views
).Enter
Browse all content
as the View name. Check the box for Description and enterBrowse all content if admin, all published if not
.In the Create a page section, enter
Browse all content
as the page title.In the Display format select boxes, select Unformatted list, teasers, without links, and without comments, respectively.
Check the Create a menu link checkbox, in the Menu select box, select Main menu and leave
Browse all content
as the link text, then click the Continue...