Operating system: Windows 10 v2004
Graphics card: 2 x NVIDIA GTX100 Ti Founder Edition
Broken: (example: 2.80, edbf15d3c044, master, 2018-11-28, as found on the splash screen)
Worked: (newest version of Blender that worked as expected)
Short description of error
I tested the problem in many Blender release and no one can render anymore in Cycles GPU mode.
I had to disable this new Windows feature to be able to use Cycles GPU rendering.
Exact steps for others to reproduce the error
Enable "Hardware accelerated GPU scheduling" (Settings -> System -> Display -> Graphics Settings) in Windows 10 v2004 and try to render anything using Cycles GPU mode.
Based on the default startup or an attached .blend file (as simple as possible).