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The other taskbars are the ones that show on the other displays that are not set as your main display, and do not have the notification area on them. The main taskbar is the taskbar with the clock and notification area on it, and is on your main display by default. If you have more than one display connected to your PC, then the taskbar will show on each display by default. You can make the taskbar look how you want, manage your calendar, pin your favorite apps to it, change the size, move it to where you want to display on your screen, and specify how taskbar buttons group together when you have more than one window open. You can also see the date and time, system icons, and items running in the background on the notification area. The taskbar allows you to find, see, open, and switch between your apps.
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Windows includes a special application desktop toolbar called the taskbar that shows on the bottom of a display screen by default. How to Lock or Unlock the Taskbar in Windows 10
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