You can move among your folders by using the navigation buttons in the toolbar and the icons in the Nautilus window. To return to the home folder, click the Back button. If you think that the contents of a folder have changed while you've been viewing it, click the Refresh button to update the information. To stop an item from loading, click the Stop button. The Tree You can get an overview of all of your computer's files and folders by using the tree.
Many people find using the tree to navigate faster than selecting and opening folders.
To see the tree, click the Tree tab at the bottom of the sidebar. Click the tab again to put the tree away. If you don't see the Tree tab, right-click the sidebar and choose Tree. Click the disclosure triangle next to the root directory to open or close the list of all your computer's folders and files. The items on your computer are arranged hierarchically.