Chapter 4: System Setup; Bios Overview; Entering Bios Setup Program; Boot Menu - Dell Latitude 9420 Service Manual

CAUTION: Unless you are an expert computer user, do not change the settings in the BIOS Setup program.
Certain changes can make your computer work incorrectly.
NOTE: Before you change BIOS Setup program, it is recommended that you write down the BIOS Setup program screen
information for future reference.
Use the BIOS Setup program for the following purposes:
● Get information about the hardware installed in your computer, such as the amount of RAM and the size of the hard drive.
● Change the system configuration information.
● Set or change a user-selectable option, such as the user password, type of hard drive installed, and enabling or disabling
base devices.
Topics:
•

BIOS overview

•

Entering BIOS setup program

•

Boot menu

• Navigation keys
• Boot Sequence
• System setup options
• Updating the BIOS in Windows
• System and setup password
• ExpressSign-in
BIOS overview
The BIOS manages data flow between the computer's operating system and attached devices such as hard disk, video adapter,
keyboard, mouse, and printer.
Entering BIOS setup program
About this task
Turn on (or restart) your computer and press F2 immediately.
Boot menu
Press <F12> when the Dell logo appears to initiate a one-time boot menu with a list of the valid boot devices for the system.
Diagnostics and BIOS Setup options are also included in this menu. The devices that are listed on the boot menu depend on the
bootable devices in the system. This menu is useful when you are attempting to boot to a particular device or to bring up the
diagnostics for the system. Using the boot menu does not make any changes to the boot order stored in the BIOS.
Table 2. UEFI Boot options
Options
Windows Boot Manager
UEFI hard drive
System setup
System setup
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