Table 9-3 Computer Setup—Advanced (for advanced users) (continued)
Option Description
●
After Power Loss (o/on/previous state). Default is Power o. Setting this option to:
○
Power o—causes the computer to remain powered o when power is restored.
○
Power on—causes the computer to power on automatically as soon as power is restored.
○
Previous state—causes the computer to power on automatically as soon as power is restored,
if it was on when power was lost.
●
Prompt on Memory Size Change. Default is enabled.
●
Prompt on Fixed Storage Change. Default is disabled.
●
Audio Alerts During Boot. Default is enabled.
●
NumLock on at boot. Default is enabled.
●
UEFI Boot Order. Default is enabled.
●
Specify the order in which UEFI boot sources (such as a internal hard drive, USB hard drive, USB
optical drive, or internal optical drive) are checked for a bootable operating system image. Each
device on the list may be individually excluded from or included for consideration as a bootable
operating system source.
UEFI boot sources always have precedence over legacy boot sources.
●
Legacy Boot Order
Specify the order in which legacy boot sources (such as a network interface card, internal hard drive,
USB optical drive, or internal optical drive) are checked for a bootable operating system image. Each
device on the list may be individually excluded from or included for consideration as a bootable
operating system source.
Specify the order of attached hard drives. The rst hard drive in the order will have priority in the
boot sequence and will be recognized as drive C (if any devices are attached).
NOTE: To drag a device to a preferred place, press Enter. To remove the device from consideration as a
bootable device, press F5.
You can use F5 to disable individual boot items, as well as disable UEFI boot and/or legacy boot.
NOTE: MS-DOS drive lettering assignments may not apply after a non-MS-DOS operating system has
started.
Shortcut to Temporarily Override Boot Order
To boot one time from a device other than the default device specied in Boot Order, restart the computer
and press Esc (to access the boot menu) and then F9 (Boot Order), or only F9 (skipping the boot menu)
when the monitor light turns green. After POST is completed, a list of bootable devices is displayed. Use
the arrow keys to select the preferred bootable device and press Enter. The computer then boots from the
selected non-default device for this one time.
Secure Boot
Conguration
Congure Legacy Support and Secure Boot
Legacy Support – Lets you turn o all legacy support on the computer, including booting to DOS, running
legacy graphics cards, booting to legacy devices, and so on.
Secure Boot – Lets you make sure an operating system is legitimate before booting to it, making Windows
resistant to malicious modication from preboot to full OS booting, preventing rmware attacks. UEFI and
Windows Secure Boot only allow code signed by pre-approved digital certicates to run during the
rmware and OS boot process.
Default is ‘Legacy Support Enable and Secure Boot Disable’.
Secure Boot Key Management
Lets you manage the custom key settings.
Clear Secure Boot Keys
66 Chapter 9 Computer Setup (F10) Utility