Please try this out everybody, its a safe method of dual booting, I think its even safe for the under 2000 serial numbers, but, as always, I am not responsible for anything that might go wrong.

http://pan.baidu.com/s/1bpmbfsF

It has been posted elsewhere, just wanted to move it up for people to notice.  You may also notice the tablet’s battery performing better and also less screen issues, especially with a sd card inserted.

Best to do this one with a powered hub.  I got a cheapy off ebay for $4.  Has a switch on it that says 1,2,3.  I use it in 2 or 3.  They have it in type c and micro usb, I got the micro usb and got a type c to micro usb adapter, works perfect, charges (very slowly though) and I have my wireless keyboard and mouse dongle and usb flash drive (with the file contained above) plugged in.

This method is much safer than the previous method.  You need to flash android first, then windows.  You will most likely loose everything in windows, so backup or simply move your files to the sd card and put them in a safe place.

bye