Windows 10 issue and fix?

[Kull]

I installed the Windows 10 "April Update" this morning, and all my DW saved games generated a graphics device crash. Rolled back to the previous Win10 version and the problem is gone. It might be something hosed up with their Nvidia drivers, or possibly Windows Defender is now overly aggressive. (I was getting fast, impossible to read, messages that seemed to indicate Defender thought it was saving me from something....most likely a relaxing game)