When i start windows, directX doesn't work(openGL works fine). I have to reboot pc to fix it. It started about 2 weeks ago with 17.5.2 driver.
MB: Gigabyte GA-M720-US3
CPU: Phenom II x4 920
RAM: 4 GB x2
GPU: Sapphire Radeon 7850 2048 MB
Sound: Asus Xonar DS
HDD: 2 TB seagate
OS : Windows 10 professional x64