You can show or hide icons on the Quick Launch toolbar and the notification area (also called the system tray), on the far right of the taskbar.
Point to the Quick Launch toolbar sizing handle.
If the taskbar is locked, you won't see the toolbar sizing handle. To learn how to unlock the taskbar, see Unlock and move the taskbar.
If you can't change the toolbar, it's either as small as it gets, or there's not enough room on the taskbar to show more of it.
Click the arrow next to the notification area
to show or hide notification area icons.