Sony VGN-TZ198N - Manual (Page 137)

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Customizing Your VAIO Computer
To return to Normal mode
Press any key.
!
If you press and hold the power button for more than four seconds, your computer will turn off automatically. You will lose all unsaved data.
✍
You can use VAIO Control Center to configure your computer to return to Normal mode when you open the LCD screen lid. This power resuming
preference will be lost if you remove both the AC adapter and the battery pack. See Setting Up Your Computer with VAIO Control Center
(page 133) .
If the computer is not used for a certain period of time, it will enter Sleep mode. To modify this, you can change the Sleep
mode settings.
To change the Sleep mode settings
1 Right-click the power status icon on the taskbar and select Power Options.
2 Click Change plan settings under the current power plan.
3 Change the time to put the computer to sleep and click Save Changes.