One Time Boot Menu; Boot Sequence; System Setup Overview - Dell Latitude 5490 Owner's Manual

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Down arrow Moves to the next field.
Enter Selects a value in the selected field (if applicable) or follow the link in the field.
Spacebar Expands or collapses a drop-down list, if applicable.
Tab Moves to the next focus area.
Esc Moves to the previous page until you view the main screen. Pressing Esc in the main screen displays a
message that prompts you to save any unsaved changes and restarts the system.

One time boot menu

To enter one time boot menu, turn on your computer, and then press F12 immediately.
NOTE: It is recommended to shutdown the computer if it is on.
The one-time boot menu displays the devices that you can boot from including the diagnostic option. The boot menu options
are:
● Removable Drive (if available)
● STXXXX Drive (if available)
NOTE: XXX denotes the SATA drive number.
● Optical Drive (if available)
● SATA Hard Drive (if available)
● Diagnostics
The boot sequence screen also displays the option to access the System Setup screen.

Boot Sequence

Boot Sequence allows you to bypass the System Setup–defined boot device order and boot directly to a specific device (for
example: optical drive or hard drive). During the Power-on Self Test (POST), when the Dell logo appears, you can:
● Access System Setup by pressing F2 key
● Bring up the one-time boot menu by pressing F12 key
The one-time boot menu displays the devices that you can boot from including the diagnostic option. The boot menu options
are:
● Removable Drive (if available)
● STXXXX Drive
NOTE: XXX denotes the SATA drive number.
● Optical Drive (if available)
● SATA Hard Drive (if available)
● Diagnostics
NOTE: Choosing Diagnostics, will display the ePSA diagnostics screen.
The boot sequence screen also displays the option to access the System Setup screen.

System Setup overview

System Setup allows you to:
● Change the system configuration information after you add, change, or remove any hardware in your computer.
● Set or change a user-selectable option such as the user password.
NOTE: For the standard graphics browser only.
System setup options 73