Please Help me, I can't recover to original Windows 10 OS

I using Chuwi Hi10 Air, But I install wrong Windows 10 OS and I can’t recover to original Windows 10 Home OS. Please help me. Thanks.

(Chuwi Hi10 AirQ64G19100XXX)
(I have downloaded BIOS file and flash, it says " ‘efi…’ is not recognized as an internal or external command, operable program, or batch file") can anyone fix this? Thanks.

You don’t need to flash bios, just install original windows.

Windows:
Chuwi Hi10 Air Windows :http://www.mediafire.com/folder/nxlndr1f48nyf/Hi10_Air

Oh, can you show me how to install this original Windows 10 Home, thanks.

Here is tutorial http://www.mediafire.com/file/uhvc8eqaure7hij/Hi10_Air_windows_flash_tutorial.docx/file

Okay, thanks for sharing this file.