Before you start, read Generic Safety and Compliance Notices, and print the following instructions.
Turn off the computer and remove all connected devices and cables.
Unlock any locking device that secures the computer cover.
Place a soft, clean towel or cloth on the desk or surface. Hold the sides of your computer and gently lay it down so that the screen is against the surface and the computer cover is facing up.
Remove the computer stand, if any. See Computer stand.