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Chapter 3: BIOS setup
Chapter 3
DB Management
The db (Authorized Signature database) lists the signers or images of UEFI
applications, operating system loaders, and UEFI drivers that you can load on the
single computer.
Delete the db
This item allows you to delete the db le from your system.
Conguration options: [Yes] [No]
Load db from File
This item allows you to load the downloaded db from a USB storage
device.
Append db from File
This item allows you to load the additional db from a storage device so that
more images can be loaded securely.
The db le must be formatted as a UEFI variable structure with time-based authenticated
variable.
DBX Management
The dbx (Revoked Signature database) lists the forbidden images of db items that are
no longer trusted and cannot be loaded.
Delete the dbx
This item allows you to delete the dbx le from your system.
Load dbx from File
This item allows you to load the downloaded dbx from a USB storage
device.
Conguration options: [Yes] [No]
Append dbx from File
This item allows you to load the additional dbx from a storage device so
that more db’s images cannot be loaded.
The dbx le must be formatted as a UEFI variable structure with time-based authenticated
variable.
Boot Option Priorities
These items specify the boot device priority sequence from the available devices. The
number of device items that appears on the screen depends on the number of devices
installed in the system.
• To access Windows
®
OS in Safe Mode, press <F8 > after POST (Windows
®
8 not
supported).
• To select the boot device during system startup, press <F8> when ASUS Logo
appears.
Boot Override
These item displays the available devices. The number of device items that appear on the
screen depends on the number of devices installed in the system. Click an item to start
booting from the selected device.