Dell XPS 16 9640 Owners Manual - Page 87

Table 30. BIOS Setup options-Boot Configuration menu continued

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Table 30. BIOS Setup options-Boot Configuration menu (continued) Boot Configuration For additional security, Dell Technologies recommends keeping the Secure Boot option enabled to ensure that the UEFI firmware validates the operating system during the boot process. NOTE: For Secure Boot to be enabled, the computer is required to be in UEFI boot mode and the Enable Legacy Option ROMs option is required to be turned off. Enable Microsoft UEFI CA When disabled, the UEFI CA is removed from the BIOS UEFI Secure Boot database. NOTE: When disabled, the Microsoft UEFI CA could render your computer unable to boot, computer graphics may not function, some devices may not function properly, and the computer could become unrecoverable. By default, the Enable Microsoft UEFI CA option is enabled. For additional security, Dell Technologies recommends keeping the Microsoft UEFI CA option enabled to ensure the broadest compatibility with devices and operating systems. Secure Boot Mode Enables or disables the Secure Boot operation mode. By default, the Deployed Mode is selected. NOTE: Deployed Mode should be selected for normal operation of Secure Boot. Expert Key Management Enable Custom Mode Enables or disables the keys in the PK, KEK, db, and dbx security key databases to be modified. By default, the Enable Custom Mode option is disabled. Custom Mode Key Management Selects the custom values for expert key management. By default, the PK option is selected. Table 31. BIOS Setup options-Integrated Devices menu Integrated Devices Date/Time Date Sets the computer date in MM/DD/YYYY format. Changes to the date format take effect immediately. Time Sets the computer time in HH/MM/SS 24-hour format. You can switch between a 12-hour and 24-hour clock. Changes to the time format take effect immediately. Camera Enable Camera Enables the camera. By default, the Enable Camera option is enabled. NOTE: Depending on the configuration ordered, the camera setup option may not be available. Audio Enable Audio Enables all integrated audio controller. By default, all the options are enabled. Enable Microphone Enables the microphone. By default, the Enable Microphone option is enabled. BIOS Setup 87

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Table 30. BIOS Setup options—Boot Configuration menu (continued)
Boot Configuration
For additional security, Dell Technologies recommends keeping the
Secure Boot
option enabled to ensure that the UEFI firmware validates the operating system
during the boot process.
NOTE:
For Secure Boot to be enabled, the computer is required to be in
UEFI boot mode and the Enable Legacy Option ROMs option is required to be
turned off.
Enable Microsoft UEFI CA
When disabled, the UEFI CA is removed from the BIOS UEFI Secure Boot
database.
NOTE:
When disabled, the Microsoft UEFI CA could render your computer
unable to boot, computer graphics may not function, some devices may not
function properly, and the computer could become unrecoverable.
By default, the
Enable Microsoft UEFI CA
option is enabled.
For additional security, Dell Technologies recommends keeping the
Microsoft
UEFI CA
option enabled to ensure the broadest compatibility with devices and
operating systems.
Secure Boot Mode
Enables or disables the Secure Boot operation mode.
By default, the
Deployed Mode
is selected.
NOTE:
Deployed Mode
should be selected for normal operation of Secure
Boot.
Expert Key Management
Enable Custom Mode
Enables or disables the keys in the PK, KEK, db, and dbx security key databases
to be modified.
By default, the
Enable Custom Mode
option is disabled.
Custom Mode Key Management
Selects the custom values for expert key management.
By default, the
PK
option is selected.
Table 31. BIOS Setup options—Integrated Devices menu 
Integrated Devices
Date/Time
Date
Sets the computer date in MM/DD/YYYY format. Changes to the date format
take effect immediately.
Time
Sets the computer time in HH/MM/SS 24-hour format. You can switch between
a 12-hour and 24-hour clock. Changes to the time format take effect immediately.
Camera
Enable Camera
Enables the camera.
By default, the
Enable Camera
option is enabled.
NOTE:
Depending on the configuration ordered, the camera setup option
may not be available.
Audio
Enable Audio
Enables all integrated audio controller.
By default, all the options are enabled.
Enable Microphone
Enables the microphone.
By default, the
Enable Microphone
option is enabled.
BIOS Setup
87