I don't even know how to begin to search for this problem and my Googling has failed so far. As per my question title these are the facts:

  • I have 3 monitors on 1 graphics card and everything is native
  • My power settings keep the system on but the monitors sleep, however, one of the monitors backlights stay on so the screen is black but not off
  • On wake, my open windows have moved, but not necessarily onto the screen that had the backlight on

And finally, all this hardware worked normally on Win7Pro before I upgraded this computer to Windows 10 Pro. The only change was a new HDD with the new system.

How can I even troubleshoot this? Any ideas?

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