Boot Menu

 

The Boot menu items allow you to change the system boot options.  

 

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Fast Boot [Enabled]

 

[Enabled]       Select to accelerate the boot speed.

[Disabled]       Select to go back to normal boot.

 

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  • The following six items appear when you set Fast Boot to [Enabled].

Redirection Support [Disabled]

 

[Disabled]

Select to disable the redirection support.

[Enabled]

Select to enable the redirection support.

Next Boot after AC Power Loss [Normal Boot]

 

[Normal Boot]

Returns to normal boot on the next boot after AC power loss

[Fast Boot]

Accelerates the boot speed on the next boot after AC power loss.

 

Boot Configuration

 

Boot Logo Display [Enabled]

[Auto]                 Adjust automatically for Windows requirement

[Full Screen]         Maximize the boot logo size.

[Disabled]             Hide the boot logo during POST.

POST Delay Time [3 sec]

 

This item appears only when you set Boot Logo Display to [Enabled]. This item allows you to select the desired additional POST waiting time to easily enter the BIOS setup. You can only execute the POST delay time during Normal Boot. The values range from 0 to 10

seconds.

 

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  • This feature will only work under normal boot.  

 

 

Boot NumLock State [ON]

[Enabled]       Sets the power-on state of the NumLock to [Enabled].

[Disabled]       Sets the power-on state of the NumLock to [Disabled].

 

Wait for ‘F1’ If Error [Enabled]

When this item is set to [Enabled], the system waits for the F1 key to be pressed when error occurs.  

Configuration options: [Disabled] [Enabled]

 

Option ROM Messages [Force BIOS]

[Force BIOS]      The third-party ROM messages will be forced to display during the boot sequence.

[Keep Current]    The third-party ROM messages will be displayed only  if the third-party manufacturer had set the add-on device to do so.

 

Interrupt 19 Capture [Disabled]

[Enabled] Allows the option ROMs to trap Interrupt 19.

[Disabled] Disables this function.

CSM (Compatibility Support Module)

Allows you to configure the CSM (Compatibility Support Module) items to fully support the various VGA, bootable devices and add-on devices for better compatibility.

Launch CSM [Enabled]

 

[Auto]          The system automatically detects the bootable devices and the add-on devices.

[Enabled]      For better compatibility, enable the CSM to fully support the non-UEFI driver add-on devices or the Windows® UEFI mode.

[Disabled]      Disable the CSM to fully support the Windows® Security Update and Security Boot.

 

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  • The following four items appear when you set Launch CSM to [Enabled].  

 

Boot Devices Control [UEFI and Legacy OpROM]

 

Allows you to select the type of devices that you want to boot up. Configuration options: [UEFI and Legacy OPROM] [Legacy OPROM only] [UEFI only]

Boot from Network Devices [Legacy only]

 

Allows you to select the type of network devices that you want to launch. Configuration options: [Legacy only] [UEFI driver first] [Ignore]

Boot from Storage Devices [Legacy only]

 

Allows you to select the type of storage devices that you want to launch. Configuration options: [Legacy only] [UEFI driver first] [Ignore]

Boot from PCI-E/PCI Expansion Devices [Legacy only]

 

Allows you to select the type of PCI-E/PCI expansion devices that you want to launch. Configuration options: [Legacy only] [UEFI driver first]

Secure Boot

 

Allows you to configure 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]

Allows you to select your installed operating system.

[Windows UEFI mode]

Executes 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, Windows® Vista/XP, or other Microsoft® Secure Boot non-compliant OS. Only on Windows® UEFI mode that Microsoft® Secure Boot can function properly.

 

Key Management

 

This item allows you to manage the Secure Boot keys.

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, all the Secure Boot keys’ state will change from Unloaded mode to loaded mode.

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 appears only when you load the default Secure Boot keys. This item allows you to save all default Secure Boot keys.

PK Management

The Platform Key (PK) locks and secures the firmware from any non-permissible changes. The system verifies the PK before your system enters the OS.

Delete PK

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.

Configuration options: [Yes] [No]

 

Set New Key

Allows you to set a new key from your system. Press [Yes] to load factory default PK or select [No] to load it from a file on external media Configuration options: [Yes] [No]

 

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  • The PK file must be formatted as a public key certificate or UEFI variable structure with time-based authenticated variable.

KEK Management

The KEK (Key-exchange Key or Key Enrollment Key) manages the Signature database (db) and Revoked Signature database (dbx).

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  • Key-exchange Key (KEK) refers to Microsoft® Secure Boot Key-Enrollment Key (KEK).

 

Delete Key

Allows you to delete the Key from your system. Configuration options: [Yes] [No]

 

Set New Key

Allows you to set a new key.

Append Key

Allows you to load the additional KEK from a storage device for an additional db and dbx loaded management.

 

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  • The KEK file must be formatted as a public key certificate or UEFI variable structure with time-based authenticated variable.

 

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 key

Allows you to delete the Key from your system. Configuration options: [Yes] [No]

 

Set New Key

Allows you to set a new key.

Append key

Allows you to load the additional KEK from a storage device for an additional db and dbx loaded management.

 

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  • The KEK file 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 key

Allows you to delete the Key from your system. Configuration options: [Yes] [No]

 

Set New Key

Allows you to set a new key.

Append key

Allows you to load the additional KEK from a storage device for an additional db and dbx loaded management.

 

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  • The KEK 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.

 

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  • To select the boot device during the system startup, press <F8> when ASUS Logo appears.  

  • To access Windows OS in Safe Mode, press <F8> after POST or press <F5> 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.