CAUTION: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface,
such as the metal at the back of the computer. While you work, periodically touch an unpainted metal surface to
dissipate static electricity, which could harm internal components.
Recommended tools
The procedures in this document require the following tools:
• Small at blade screwdriver
• Phillips #0 screwdriver
• Phillips #1 screwdriver
• Small plastic scribe
Turning o your computer
CAUTION: To avoid losing data, save and close all open les and exit all open programs before you turn o your
computer.
1. Turning o your computer:
• In Windows 10 (using a touch enabled device or mouse):
1. Click or tap .
2. Click or tap and then click or touch Shut down.
• In Windows 8 (using a touch enabled device):
1. Swipe in from the right edge of the screen, opening the Charms menu and select Settings.
2. Tap and then tap Shut down
• In Windows 8 (using a mouse):
1. Point to upper-right corner of the screen and click Settings.
2. Click and then click Shut down.
• In Windows 7:
1. Click Start.
2. Click Shut Down.
or
1. Click Start.
2. Click the arrow in the lower-right corner of the Start menu and then click Log o.
2. Ensure that the computer and all attached devices are turned o. If your computer and attached devices did not automatically
turn o when you shut down your operating system, press and hold the power button for about 6 seconds to turn them o.
After working inside your computer
After you complete any replacement procedure, ensure you connect any external devices, cards, and cables before turning on your
computer.
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