Yes sir after disable it ,everythings working perfectly for me .No more darkness with your setting and never crashed again after disable .I can get 4k render with no crash right now .I dont know why i dont know how but its working .Like i said before im just a beginner
edit:Very very much thanks again sir .You are life saver
Here is my specs btw ;
CPU: intel core i7 6700k 4.2 Ghz 8 mb cahce
GPU:MSI GeForce GTX 1070 Gaming x 8gb ddr5 256bit Nvidia
MotherBoard: MSI Z170A Gaming M5 ddr4 3200 MHz
Memory : Corsair 16 GB(2x8GB) Vengeance Led Red 3000 MHz CL15
SSD: Samsung 256 GB 950 Pro M.2 V-Nand (read speed 2200 mb)