The following image displays two windows. You can distinguish the active window from the inactive window by looking for the window with the darker color. The window at the top of the image is inactive (the "My Computer" window) an d the window at the bottom of the image is active (the "Microsoft Word" window). To make a window active, click anywhere inside the window or on the title bar. As windows are opened, a button for that window will appear on the task bar an d the active will appear recessed. Notice the task bar at the bottom of the image.

Windows XP Windows

Windows Vista Windows