I have Ansel app NvCameraConfiguration.exe enabled, I runWin 10 (64bit), Intel Core i7 CPU 920 @ 970 Ghz, Asus Strix OC 1060 6gb, GeForce Experience with latest driver.
I had similar issues with this, followed all the instructions and"alt+f2" would not launch overlay.
I opened up the “NvCameraConfiguration.exe” at C:\Program Files\NVIDIA Corporation\Ansel\Tools changed the ansel shortcut to something other then “alt+f2” and I was able to launch ansel in my project.