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Troubleshooting >
Computer Operations
How can I change the boot device order?
You can use one of the BIOS functions to change the boot device order. Follow these steps:
1 Turn on the computer and press the F2 key repeatedly until the VAIO logo disappears.
The BIOS setup screen appears. If the screen does not appear, restart the computer and try again.
2 Press the < or , key to select Boot.
3 Press the M or m key to select the drive whose boot device order you want to change.
4 Press the F5 or F6 key to change the boot device order.
5 Press the < or , key to select Exit, select Exit Setup, and then press the Enter key.
At the confirmation prompt, press the Enter key.
Why doesn't my screen turn off after the automatic turn-off time has passed?
Some software applications or screen savers are designed to temporarily disable the feature of your operating system that
turns off the computer screen or places the computer into Sleep mode after a certain period of inactivity. To solve this
problem, exit the running software application(s) or change the current screen saver.
What should I do if I cannot boot my computer from the external device connected to the
computer?
To boot your computer from an external device, for example a USB floppy disk drive or a USB optical disc drive, you need to
change the boot device. To change the boot device, turn on your computer and press the F11 key repeatedly until the VAIO
logo disappears.
!
When using an external device, be sure to connect it to an AC power source in advance.