Hi everyone! I have installed Windows 10 via bootcamp (the most recent ISO from microsoft) and updated to OSX 10.11.5. My nMP is connected to a 4k display (Samsung 4k 28) and after the installation of windows 10, the Windows 10 will boot into a blank screen, I think its because the 4k display is not recognized. I also tried to hold Option key when hearing the chime but the screen is still blank. if I use tab key to choose OSX on the blank screen it will boot into OSX normally. any solutions? Thank you very much !