Your laptop's specs can be found here
. The website is japanese, but you can use a webpage translator on it. I believe you have the user manual at hand, you can refer to it in configuring the BIOS.
From the shots you linked, I noticed CSM launch is enabled and Secure Boot is disabled, perhaps to be able to boot from the usb flash drive you created. I suggest to revert BIOS to factory default settings. If you've set any passwords under Security, remove them, and unlock any interfaces that you've locked under I/O Interface Security, then save the settings.
Next, you need to create an UEFI bootable Windows 10 (64-bit) usb flash disk and boot from it. When the Windows 10 setup language selection screen loads, select your language of choice, keyboard layout and regional formats as desired and click next. Press Shift
and Command Prompt
will open. Type the following commands and press Enter after each command:
SELECT DISK #
where # is the disk number
of the 64GB eMMC storage. Usually, this would be number 0, e.g SELECT DISK 0
You run EXIT twice to first quit DiskPart and secondly to close Command Prompt. You can then begin the Windows 10 installation. At the disk selection screen where you saw that error, you should see the eMMC storage with ALL of its space being unallocated. Select it and Windows setup will take care of the rest.
Note: for a usb flash disk to be UEFI bootable, it MUST be formatted as FAT32 and set to Active and it doesn't have to be a GPT disk. This can be quite confusing. GPT is a requirement for the target installation disk (64GB eMMC in your case), but not for the source installation media (usb flash disk).