I have a hp 4169wm laptop with switchable graphics both are ati cards ati mobility radeon 4200 series is the legacy integrated chip ad the ati mobility radeon 5200 is the dedicated card i just installed windows 8.1 and need a modded driver that allows for the switching
You can just install latest driver from AMD or OEM, as long as it is WDDM driver, it should be works on Windows 8.1