When I attempt to boot the newly built computer from a USB in order to install windows 10, I get the error "Reboot and select proper boot device." I think that somehow my settings in the UEFI are not correct so that it is not attempting to boot from the USB as I'd like.
Some details:
Answer
It doesn't make sense to dd a Windows ISO to a USB drive. It's simply not supposed to be bootable this way. For the PC to boot a USB drive, the drive needs to have either a MBR with proper boot code for hard disks, but not ISO9660/UDF, for BIOS/CSM, or a proper FAT-formatted ESP for UEFI.
The simplest way to make a bootable Windows installation USB for UEFI, is to format the drive with FAT32, and then mount the ISO and copy the content to it. UEFI simply looks for EFI binaries on proper location.
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