Sony VGN-S150 Quick Start Manual page 35

Turning Off Your Computer
Respond to any prompts warning you to save documents.
4 Wait for your computer to turn off automatically. The computer is off when
the power indicator turns off.
During a period of inactivity, you can conserve battery life by using power saving
modes. See the on-screen VAIO® Computer User Guide for more information.
If you are unable to turn off the computer, press and hold the power button until the
computer turns off. This operation may result in data loss.
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