Computer
2Turn off the computer.
3Remove any peripheral devices connected to the computer.
4Restart the computer.
5Press the F2 key when the Sony logo appears. The BIOS Setup window appears.
6Press the Right Arrow key 
to select the Exit menu.
7Press the Down Arrow key 
to select Get Default Values. The message Load default values for all SETUP items appears.
8Press Enter. The Setup Confirmation window appears.
9Select Yes, and press Enter.
10Select Exit (Save Changes), and press Enter. The Setup Confirmation window appears again.
11Select Yes, and press Enter. The computer restarts.
Why does my computer stop responding? Why can’t I turn off my computer?
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.
❑Click Start on the Windows® taskbar, select Turn Off Computer, and then click Turn Off.
❑If your computer does not turn off, press the Ctrl+Alt+Delete keys simultaneously. When the Windows Task Manager dialog box appears, click Turn Off from the Shut Down menu.
❑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.
❑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.
✍Pressing the Ctrl+Alt+Delete keys simultaneously or turning off the computer with the power button or switch may cause loss of data.
❑Remove the AC adapter and battery.
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