The trick with this tablet is that it has a 32 bit bootloader even thou it can run 64 bit OS because it has a 64 bit intel atom processor. You need to create a special 32 boot to place on the booting sequence of the x64 OS. Also this tablet has secure boot. you need to disable it(Can be done in bootloader). If you get into EFI Shell (White and Yellow Lettering stating USB devices) simply write “exit” and hit enter on your keyboard. This should boot you to the bootloader screen. From there as mention go into secure boot to disable it, Install any OS. Also the drivers and components for this tablet are on this website: https://drp.su/en/laptops/noname/dl808w?...-10-x64 I am not affiliated in any way to this website but is the only place I was able to find information on the tablet.
I have the same tablet. Been playing with it for years (Install different OS, Currently running Ubuntu with some kinks) The touch drivers for the screen are from Silead Inc (China based company) and windows doesn’t install them out of the box. The only place I found drivers are on this page: https://drp.su/en/laptops/noname/dl808w?...-10-x64 I don't trust the installer on the website so I just got the drivers.