You're facing issues getting started with a USB drive for Windows installation.
You're trying to install version 10, but the 8.1 system is broken and won't load Windows.
Consider turning off secure boot to test USB booting, and confirm whether the USB drive can be used as a boot source.
It doesn't support secure boot, but it is definitely bootable.
Is the system ready to start from UEFI? (For UEFI setups, you might want to turn off all other disks while using the BIOS menu.)