Sony VAIO VGN-S450FP, User Manual

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Troubleshooting
What should I do if my computer or software stops responding?
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It is best to turn off your computer using the Turn Off Computer option on the Microsoft Windows Start menu, located on the
taskbar. Using other methods, including those listed below, may result in loss of unsaved data.
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Click Start, point to Turn Off Computer, and then click Turn Off.
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If your computer does not turn off, press the Ctrl+Alt+Delete keys simultaneously. When the Windows Task Manager
window appears, click Turn Off from the Shut Down menu.
When the Windows Security window appears, click Shut Down.
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If your computer still does not turn off, press and hold the power button or slide and hold the power switch until the computer
turns off.
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If your computer stops responding while playing a CD or DVD, press the Ctrl+Alt+Delete keys simultaneously. You can turn
off the computer from the Windows Task Manager.
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Pressing the Ctrl+Alt+Delete keys simultaneously or turning off the computer with the power button or switch may cause loss
of data.
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Remove the AC adapter and battery.
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Try reinstalling the software.
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Contact the software publisher or designated provider for technical support.