Commonly used options, Changing the boot sequence – Dell Latitude 120L User Manual
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setup.
Commonly Used Options
Certain options require that you reboot the computer for new settings to take effect.
Changing the Boot Sequence
The boot sequence, or boot order, tells the computer where to look to find the software needed to start the operating system. You can control the boot
sequence and enable/disable devices using the Boot Order page of system setup.
The Boot Order page displays a general list of the bootable devices that may be installed in your computer, including but not limited to the following:
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Internal HDD
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USB Storage Device
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CD/DVD/CD-RW drive
During the boot routine, the computer starts at the top of the list and scans each enabled device for the operating system start-up files. When the computer
finds the files, it stops searching and starts the operating system.
To control the boot devices, select (highlight) a device by pressing the down-arrow or up-arrow key, and then enable or disable the device or change its order
in the list.
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To enable or disable a device, highlight the item and press the space bar. Enabled items are preceded by a number; disabled items are not preceded by
a number.
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To reorder a device in the list, highlight the device and press either <u> to move the device up the list or <d> to move a device down the list.
Boot sequence changes take effect as soon as you save the changes and exit system setup.
Performing a One-Time Boot
You can set a one-time-only boot sequence without entering system setup. (You can also use this procedure to boot the Dell Diagnostics on the diagnostics
utility partition on your hard drive.)
1.
Shut down the computer through the Start menu.
2.
Connect the computer to an electrical outlet.
3.
Turn on the computer. When the DELL logo appears, press <F2> immediately. If you wait too long and the Windows logo appears, continue to wait until
you see the Windows desktop. Then shut down your computer and try again.
4.
When the boot device list appears, highlight the device from which you want to boot and press <Enter>.
The computer boots to the selected device.
The next time you reboot the computer, the previous boot order is restored.
NOTE:
To change the boot sequence on a one-time-only basis, see
NOTE:
Only devices that are preceded by a number are bootable.