Dell E26S Series owner manual Secure Boot Custom Policy Settings screen

Menu Item	Description
TPM Command	CAUTION: Clearing the TPM results in the loss of all keys in the
	TPM. The loss of TPM keys may affect booting to the operating
	system.
	Clears all the contents of the TPM. By default, the TPM Clear option is set
	to No.
Intel TXT	Enables or disables the Intel Trusted Execution Technology (TXT). To
	enable Intel TXT, Virtualization Technology must be enabled and TPM
	Security must be Enabled with Pre-boot measurements. By default, the
	Intel TXT option is set to Off.
Power Button	Enables or disables the power button on the front of the system. By
	default, the Power Button option is set to Enabled.
NMI Button	Enables or disables the NMI button on the front of the system. By default,
	the NMI Button option is set to Disabled.
AC Power Recovery	Sets how the system reacts after AC power is restored to the system. By
	default, the AC Power Recovery option is set to Last.
AC Power Recovery Delay	Sets how the system supports staggering of power up after AC power is
	restored to the system. By default, the AC Power Recovery Delay option
	is set to Immediate.
User Defined Delay (60s to	Sets the User Defined Delay when the User Defined option for AC Power
240s)	Recovery Delay is selected.
UEFI Variable Access	Provides varying degrees of securing UEFI variables. When set to
	Standard (the default), UEFI variables are accessible in the Operating
	System per the UEFI specification. When set to Controlled, selected UEFI
	variables are protected in the environment and new UEFI boot entries are
	forced to be at the end of the current boot order.
Secure Boot	Enables Secure Boot, where the BIOS authenticates each pre-boot image
	using the certificates in the Secure Boot Policy. Secure Boot is disabled
	by default.
Secure Boot Policy	When Secure Boot policy is set to Standard, the BIOS uses the system
	manufacturer’s key and certificates to authenticate pre-boot images.
	When Secure Boot policy is set to Custom, the BIOS uses the user-
	defined key and certificates. Secure Boot policy is set to Standard by
	default.
Secure Boot Policy	Displays the list of certificates and hashes that secure boot uses to
Summary	authenticate images.

Secure Boot Custom Policy Settings screen

Secure Boot Custom Policy Settings is displayed only when Secure Boot Policy is set to Custom.

In the System Setup Main Menu, click System BIOS → System Security → Secure Boot Custom Policy Settings. The Secure Boot Custom Policy Settings screen details are explained as follows:

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