hi,,, I've HP Pavilion G6 equiped with AMD Radeon HD 6470M (1 GB DDR3) Video Driver & Intel HD Video Driver (Switchable driver) .... I've Recently upgraded to Windows 10 - 64 Bit and Updated my drivers automatically but I can't switch between my video drivers anymore !! and much I can't play any game because DirectX diagnostic tool refers to display driver as only Intel HD Graphics (eventhough AMD Display driver is updated as I sayed), and the approx. total memory is 1696 MB (eventhough it was more than 2700 MB when I used win 7 - 64 Bit),,,, any one knows how to fix that pls.