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With Secure Boot disabled, do you have &quot;Boot Support&quot; enabled in the USB Configuration menu?
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Secure Boot is disabled. I will check for the &quot;Boot Support&quot; enabled in the USB configuration menu when I am in the office tomorrow. But I guess yes as I can boot from USB in Legacy BIOS mode.
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If it's working in Legacy that's likely to be true. <br />
Also check Rufus has added a file at <b>\EFI\BOOT\BOOTx64.EFI</b><br />
Which makes the stick UEFI bootable, it's not needed for Legacy boot.
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@ rindi: The USB stick is connected when I try to add the boot option to the list. However I need to check in the office tomorrow wether I selected FAT32.<br />
<br />
@ MASQ: I remember having seen the Bootx64.EFI file during my last test on Friday. So the Rufus boot stick should be OK.
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My Rufus USB drive was NFTS. I re-created a FAT32 bootable USB drive with Rufus and could install Windows in UEFI mode from USB. THX
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<div class="content wysiwyg-content">
Hello,<br />
<br />
I need to install Windows 10 Enterprise in UEFI mode on a Dell OptiPlex 7020 desktop (BIOS version A08).<br />
<br />
However in UEFI BIOS mode, I can only boot from the local SSD drive. In the BIOS settings, when I click &quot;add boot option&quot; I only have once choic, that's the SSD drive entry.<br />
<br />
So how can I add USB as a UEFI boot option?<br />
<br />
I use RUFUS to create a Win10 bootable USB drive.<br />
<br />
THX
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</div>


Hello,

I need to install Windows 10 Enterprise in UEFI mode on a Dell OptiPlex 7020 desktop (BIOS version A08).

However in UEFI BIOS mode, I can only boot from the local SSD drive. In the BIOS settings, when I click "add boot option" I only have once choic, that's the SSD drive entry.

So how can I add USB as a UEFI boot option?

I use RUFUS to create a Win10 bootable USB drive.

THX

Dell OptiPlex 7020 - UEFI BIOS - Cannot add USB to boot list option

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