It's the one in HardwareConfig.

I also had a tiny bit of trouble later when trying to update to build 1709, I also needed to find a key I'd changed earlier, "PortableOperatingSystem" was set to 1...

Just used your thread to solve a problem cloning a Lenovo with UEFI.

What worked was using Samsung's Data Migration to clone to a Samsung SATA SSD in a USB dock, then make your registry change to...