Sony PCG-R505GCP Quick Start Manual page 59

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Pressing the Ctrl+Alt+Delete keys simultaneously or turning off the computer with
the power button may result in data loss in files that are currently open.
Why won't the power management respond?
Your computer's operating system may become unstable if a lower power state,
such as Hibernate, is initiated and changed before the computer completely
enters the lower power state.
To restore the computer to its normal operating stability
1 Close all open programs.
2 Restart the computer. Follow these steps:
1 Press the Windows key
2 Press U. The Turn off computer window opens.
3 Press R to select restart.
4 (Windows 2000) Press Enter.
3 If the computer does not restart,
1 (Windows XP) Press Ctrl+Alt+Delete simultaneously. The Windows
Task Manager window appears.
(Windows 2000) Press Ctrl+Alt+Delete simultaneously. The Windows
Security dialog box appears.
2 (Windows XP) Press Alt to highlight the menu bar, and press the Right
Arrow
(Windows 2000) Press the Right Arrow
3 Press Enter.
4 Press R to select restart.
5 (Windows 2000) Press Enter.
4 If this procedure does not work, press and hold the power button for four
seconds or longer to turn off the computer.
.
key to select Shut Down.
Troubleshooting Your Computer
key to select Shut Down.
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