How to Turn System Icons On or Off in Windows 7 and Windows 8
System icons, including Input indicator (Windows 8 only), Clock, Volume, Network, Power, and Action Center are special icons that are part of Windows. For these icons, you can change how the icons and notifications appear, and also whether they show up at all. You might turn off a system icon if either you or your computer manufacturer have installed a similar program. If you turn a system icon off, you can always turn it back on later.
This tutorial will show you how to turn a system icon on the taskbar on or off in Windows 7 and Windows 8.
The Power icon will be grayed out and off unless your computer is running with battery power. For example, a laptop with it's...