Asus Z87M-PLUS - Manual (Page 103)

ASUS Z87M-PLUS 3-45
Chapter 3
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
Allows you to delete the dbx file from your system. Deleting the dbx
exposes your system to security threats.
Load dbx from File
Allows you to load the downloaded dbx from a USB storage device.
[Yes]
Load the default dbx.
[Enabled] Load from a USB storage device.
Append dbx from File
Allows you to load the additional dbx from a storage device so that more
custom signed UEFI executable files can be loaded. UEFI executable files
include UEFI boot loaders, drivers and applications.
[Yes]
Load the default dbx.
[Enabled] Load from a USB storage device.
The dbx file 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, do any of the following:
• Press <F5> when ASUS Logo appears.
• Press <F8> after POST.
• To select the boot device during system startup, press <F8> when ASUS Logo
appears.
Boot Override
These items displays the available devices. The number of device items that appears on
the screen depends on the number of devices installed in the system. Click an item to start
booting from the selected device.