Alternately, right-click on the Steam icon in the notification tray on your desktop, and select “Exit. ” In Windows, the notification tray is located at the bottom right corner of the desktop; in Mac OS X, the notification tray is located at the top right corner of the desktop.

Alternately, right-click on the Steam icon in the notification tray on your desktop, and select “Exit. ” In Windows, the notification tray is located at the bottom right corner of the desktop; in Mac OS X, the notification tray is located at the top right corner of the desktop.