User Manual

74
ROG STRIX X299-E Gaming BIOS Manual
Boot from PCI-E/PCI Expansion Devices
This item allows you to select the type of PCI-E/PCI expansion devices to
run rst during the system boot.
Conguration options: [Legacy only] [UEFI driver rst]
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.
OS Type
[Windows UEFI Mode] This item allows you to select your installed operating
system. Execute the Microsoft
®
Secure Boot check. Only
select this option when booting on Windows
®
UEFI mode
or other Microsoft
®
Secure Boot compliant OS.
[Other OS] Get the optimized function when booting on Windows
®
non-UEFI mode. Microsoft
®
Secure Boot only supports
Windows
®
UEFI mode.
The Microsoft
®
secure boot can only function properly on Windows
®
UEFI mode.
Key Management
Install Default Secure Boot keys
This item allows you to immediately load the default Security Boot keys, Platform key
(PK), Key-exchange Key (KEK), Signature database (db), and Revoked Signatures
(dbx). When the default Secure boot keys are loaded, the PK state will change from
Unloaded mode to loaded mode.
You need to save the changes and reset the system for the changes to take effect.
Clear Secure Boot Keys
This item appears only when you load the default Secure Boot keys. This item allows
you to clear all default Secure Boot keys.
Save Secure Boot Keys
This item allows you to save all secure boot keys to a USB storage device.
PK Management
The Platform Key (PK) locks and secures the rmware from any permissible changes.
The system veries the PK before your system enters the OS.
Save To File
This item allows you to save the PK to a USB storage device.
Set New key
This item allows you to load the downloaded PK from a USB storage
device.
Delete key
This item allows you to delete the PK from your system. Once the PK is
deleted, all the system’s Secure Boot keys will not be active.
Conguration options: [Yes] [No]