After I installed the Hyper-V role on my Windows 10 Pro laptop I noticed several monitors that didn’t exist :
I tried to re-create the problem by uninstalling the Hyper-V role, and after that the problem was gone. But ofcourse that isn’t a reasonable solution. After some investiging I found out that this is a common problem with the Intel HD 4600 graphics adapter. The solution is to revert to an older version of the driver.
You can find the driver here
After downloading the driver go to the properties of your display adapter and choose roll back driver.
After that choose Update driver and then choose the driver file you’ve just downloaded.
After rebooting you should notice that you’re extra monitors are gone :