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Before You Begin
Turn Off Your Computer and Connected Devices
CAUTION: To avoid losing data, save and close all open files and exit all open programs before you turn off your computer.
1Save and close all open files and exit all open programs.
2Click Start 
and click Shut Down.
Microsoft Windows shuts down and then the computer turns off.
NOTE: If you are using a different operating system, see the documentation of your operating system for
3Disconnect your computer and all attached devices from their electrical outlets.
4Disconnect all telephone cables, network cables, and attached devices from your computer.
5After the computer is unplugged, press and hold the power button for about 5 seconds to ground the system board.
Before You Begin
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