H10 Plus (CW1527)

Hi Team,
My machine was not in usable condition, Please help on the below questions

  1. Wanted to update my Software it was old not supported by many apps.

  2. Bios for dual boot, Latest supported Android .

  3. Latest supported windows Light weight should be fine.

  4. Complete procedure for bios flashing and firmware upgrade and android and windows installation procedure.

  5. Is there any way to take true machine image backup including (android+windows)

Model :- Chuwi H10 Plus (CW1527)
Android Version :- 5.1
Serial No :- 4G+64G Hi10 LQ64G42170902045

Thanks & Regards,
Suresh K