As far as I know, there is no ready install file for Windows 1703 for your tablet now.
The best thing you can do is learn how to compile a Windows install file by yourself independently. I can offer you something like a manual. Click
This is for Hi12, but the principle is the same for any tablet. Just replace the Hi12 files with the original files for your tablet.
You can read my manual on flashing Windows from this thread too.