Sony PCV-R549DS - Manual (Page 158)

To avoid the potential loss of data, do not use the power switch to shut down the computer.
To shut down your computer
If you plan to shut down your computer for a short period of time, you may want to use standby mode
instead. See Using the Standby Function .
 Click the Start button on the Windows
®
taskbar to open the Start menu.
 Click Shut Down to display the Shut Down dialog box.
 Select the Shut down option.
 Click OK to complete the shutdown process.
Respond to any prompts about saving documents.

Wait for your computer to turn off automatically -- the power indicator light turns off.
 Turn off the display and any other peripherals connected to your computer.
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