You can show or hide icons on the Quick Launch toolbar and the notification area (also called the system tray) 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.
When the pointer turns into a double-headed arrow , click it, and then drag the toolbar sizing handle to show or hide more or less of the toolbar.
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.