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.
UEFI boot mode (the default), 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
UEFI 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
www.dell.com/ossupport.
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