Problem changing default GPU

Errorx404

Estimable
Feb 27, 2015
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I want to change my default graphic card, so I go to Nvidia CP > 3D Settings >Global Config then I change the preferred graphics processor from "automatic selection" to "High performance NVidia processor", I apply the change BUT when I close the Nvidia CP is goes back to "automatic selection", this is driving me nuts. Help Pls!