I just did a complete reformat of my computer with Windows 7. During the Windows Updates (171 of them) I read all the individual 'optional' updates to ensure none of the Windows 10 programs were installed. One of the Microsoft updates was for Samsung 4k monitors/TV's, correcting microsofts recognition and utilization of the 4k aspect. If you are having issues with these monitors, it's best if you use Windows Update optional updates to correct it. Optional updates are very important in many areas that a lot of people never install...(another is .netframeworks updates).