Hi !

First, i would like to say sorry for my bad english because i’m french. We received 30 Optiplex 7050 in our office recently. 

I need to modify some settings in the UEFI to have this :

- disable secure boot

- UEFI -> Legacy BIOS

- Sata : Raid On -> AHCI

- boot PXE enable

- first boot : hard disk

- Wake On Lan : enable

- Password BIOS modification enable

I know i can’t disable Secure boot with Dell Command&Configure but i try to have less manipulations : my idea is : boot on a UEFI USB Stick on a WinPE and run an preconfigured .exe with good settings (created with Dell Configure ?).

After the reboot, i will use my deployement tool to deploy my image.

I tried to follow this tutorial : https://www.dell.com/support/article/fr/fr/frbsdt1/sln305485/how-to-create-a-uefi-bootable-winpe-usb-with-dell-command-configure?lang=en

But, when i boot on the USB Stick, i have an error : https://drive.google.com/file/d/1KSCnHNXEUG76i6hFw7NJx4g3EUVrckEv/view?usp=sharing

I tried with differents sticks and same error.

Where is my mistake ? Maybe during the process of USB stick creation ?

Thank you all for your help.