Sony VGN-UX180P - Manual (Page 34)

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Using Your VAIO Computer
Blocking Unintentional Operations
While you are carrying your computer around, you might press a button on the computer unintentionally and find an operation
that you never expected in progress. To block such unintentional operations, your computer is provided with the function to
lock certain components of the computer. Slide down the power switch to the HOLD position (in the opposite direction of
f
on the switch) until it clicks into place. You will see the color of the hole on the power switch turns orange. Additionally, your
computer screen will display a message and go blank to conserve power.