Taskbar notification area overview
The notification area of the taskbar is where you usually see the current time displayed. This area can become crowded with notification icons that appear when certain events occur, such as when you receive e-mail or when you open Task Manager. Windows displays a notification icon when an event occurs. After a short time, Windows puts the icon in the background to simplify that area. You can access the icons that have been placed in the background by clicking a button in the notification area.
In addition, you can customize the behavior of notification icons on the Taskbar tab of the Taskbar and Start Menu Properties dialog box.
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