FWIW, your system seems to be using an InsydeH20 firmware, which is not a BIOS but a UEFI one.
The tools in UBCD are mostly for BIOS, so you might have some "CSM" or "BIOS Legacy" mode or similar, somewhere (in the "advanced" tab maybe?, or in the "boot" one?). You wouldn't be able to boot UBCD at all (whether from USB, from optical media, or from anywhere else) without CSM.
BTW, Windows is expected to boot to an MBR in BIOS/CSM mode, or to GPT in UEFI mode. For other combinations, unofficial unsupported hacks are needed.
The tools in UBCD are mostly for BIOS, so you might have some "CSM" or "BIOS Legacy" mode or similar, somewhere (in the "advanced" tab maybe?, or in the "boot" one?). You wouldn't be able to boot UBCD at all (whether from USB, from optical media, or from anywhere else) without CSM.
BTW, Windows is expected to boot to an MBR in BIOS/CSM mode, or to GPT in UEFI mode. For other combinations, unofficial unsupported hacks are needed.