[Win10PE_SE_2015-12-24.zip]...
1) Wifi device(mine intel 7260ac) is not visible in PE network.
2) Graphics still I get only basic not my Intel HD4000. I could get the driver loaded by drvload and get graphics resolution.
...
to 1): activate ..\Drivers\zz_Drivers.script (Driver Integration); put your Wifi device driver files (stuctured folder(s) for each device) into ..\Workbench\Common\Drivers_x64\
For your case I suggest: ..\Workbench\Common\Drivers_x64\intel7260ac\
to 2.): Tested solution. For your case I suggest: ..\Workbench\Common\Drivers_x64\intelHD4000\
[Note: Fixscreen.exe is already integrated]