System Setup enables you to specify one of the following boot modes
for installing your operating system:
BIOS boot mode (the default) is the standard BIOS-level
boot interface.
Unified
Extensible Firmware Interface (UEFI) boot mode is an enhanced 64-bit
boot interface. If you have configured your system to boot to UEFI
mode, it replaces the system BIOS.
From the System Setup Main Menu, click Boot Settings, and select Boot Mode.
Select the boot mode you want the system to boot
into.
CAUTION: Switching the boot mode may prevent the system from booting if the
operating system is not installed in the same boot mode.
After the system boots in the specified boot mode,
proceed to install your operating system from that mode.
NOTE: Operating systems must be
UEFI-compatible to be installed from the UEFI boot mode. DOS and 32-bit
operating systems do not support UEFI and can only be installed from
the BIOS boot mode.
NOTE: For the latest information
about supported operating systems, go to Dell.com/ossupport.
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