If you prefer to see files in a hierarchical structure (similar to a family tree), you'll like using Windows Explorer. Instead of opening disks and folders in separate windows, you can browse through them in a single window. The left pane of the Windows Explorer window contains a list of your disks and folders, and the right pane displays the contents of the selected folder. You can use the View menu to change how the icons in the right pane appear.
To use Windows Explorer to view the contents of your local (hard) disk
The contents of your hard disk appear in the right pane.