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Option
Description
UEFI Boot Settings Enables or disables UEFI Boot options.
The Boot options include IPv4 PXE and IPv6 PXE. This option is set to IPv4 by default.
Generic USB Boot
Enables or disables the USB boot option. This option is set to Disabled by default.
Hard-disk Drive
Enables or disables the Hard-disk drive placeholder option. This option is set to Disabled by default.
Placeholder
UEFI Boot
Enables you to change the boot device order.
Sequence
Boot Options
Enables you to select the enabled or disabled boot devices.
Enable/Disable
Choosing system boot mode
System Setup enables you to specify one of the following boot modes for installing your operating system:
•
BIOS boot mode 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.
1
From the System Setup Main Menu, click Boot Settings, and select Boot Mode.
2
Select the UEFI boot mode you want the system to boot into.
CAUTION:
the same boot mode.
3
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.
Changing boot order
About this task
You may have to change the boot order if you want to boot from a USB key or an optical drive. The following instructions may vary if you
have selected BIOS for Boot Mode.
Steps
1
On the System Setup Main Menu screen, click System BIOS > Boot Settings > UEFI/BIOS Boot Settings > UEFI/BIOS Boot
Sequence.
2
Click Boot Option Settings > BIOS > Boot Sequence.
3
Click Exit, and then click Yes to save the settings on exit.
56
Pre-operating system management applications
NOTE:
This option is enabled only if the boot mode is UEFI.
Switching the boot mode may prevent the system from booting if the operating system is not installed in
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