User manual

ASUS X99-A II
3-31
Chapter 3
Secure Boot
This item allows you to congure the Windows
®
Secure Boot settings and manage its keys to
protect the system from unauthorized access and malwares during POST
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.