So, the problem is that my pc, when i open properties of Amd Radeon Hd 7600M Series says me that Drivers for this device isn't istalled. By the way i'v update drivers for graphic card.
попробуйте установить amd cleanup utility, удалить драйвера с помощью этой программы, потом зайти в amd drivers and Support, и выберите Auto-Detect and Install