Back to the Top Accessing the Contents of a Drive Double click any drive icon, such as the hard drive icon, to open it. Inside are files and folders. A folder is a container for files and other subfolders. You can have several windows open at a time, but only one can be active. The active window has a gray horizontal bars in the title bar at the top.
Inactive windows have a gray title bar.
So, if you want to close the file but leave the application open, click the close box. This hides the window but does not close it. You see just the title bar. You can display it again by clicking the the title bar's minimize button. This resizes the window to its last size To move window, click and drag it by its title bar at the top of the window.