Game crashes with error \"Failed to create D3D device.\" (Counter-Strike: Global Offensive)

The error window also says to follow Steam support, and it says that this problem occurs on computers with some AMD video cards, including the Radeon HD 6750 (I have one). it says that you need to install a fresh NET Framework and video drivers, and also specify the -dxlevel 90 value in the game launch properties (done through Steam). I did all this and it did not help. Still the error pops up. What to do?