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Legacy BIOS

This menu configures system UEFI firmware execution environment preferences for supporting legacy OS and legacy Option ROM.

ItemOperationDescription
Legacy BIOS
  • Enable

  • Disable

Enable or disable the system UEFI firmware execution environment for supporting legacy OS and legacy Option ROM.

Enable is the default setting.

Rehook INT 19h
  • Enable

  • Disable

[Enable] prevents devices from taking control of the boot process.

Disable is the default setting.

Legacy BIOS is disabled due to secure boot is enabled. 
Note
Available only when secure boot is enabled.