DirectX Funciton Error

Here is a solution that worked for me:

Go to Advanced System Settings form start menu. On the opened window click Advanced tab. Click on Settings present in the Performance section. Go to Advanced tab and click on Change. Untick the Automatically manage paging file size for all drives. Select the driver where your game is installed and select Custom Size, set initial  size and write a value close to your GPU's VRAM. I wrote 7700mb. Finally click apply and reboot your pc.