That's the UEFI boot prompt.
The key needs to be setup so it will boot UEFI and not MBR.
You might try using Rufus which is capable of creating a bootable USB which can be used with UEFI. I'd try partition scheme UEFI and choose File System as NTFS https://rufus.akeo.ie/
Source:
https://community.hpe.com/t5/ProLiant-Servers-ML-DL-SL/Setting-up-new-server-help-ASAP-please/m-p/6975394#M159038
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