Holding the Power Button Down Does Not Turn Off the Computer. The proper way to shut down a computer is by pressing the Windows "Start" button and selecting "Shut Down" from the available options.

Change what the Computer Power Button does From the WinX Menu, select Control Panel, and then open Power Options applet. From the right pane, select Choose what Power Buttons do.

Can't reach the power button on your desktop? Or do you just want to avoid having to reach down to press it? This USB gadget may be the solution you need.

Everything inside your computer receives instructions from the CPU through its connection to the motherboard. If the board is faulty, the CPU cannot communicate with anything else.