This is not true i have an hp envy 3040 nr and The windows 8 drivers DONT NOT work with windows 8.1 the gpu constantly crashes, i cannot switch and never know what gpu is on or off, the display is choppy and laggy. i have reinstalled the drives many times, including a clean install of windows. Windows 8.1 will not work untill drivers are updated. ( knowing HP they will never update the drivers.)
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