Method One,
1, first open the Win7 flagship system control Panel, and then choose to open the "Power Options" item;
2, then in the Open interface, click on the right side of the "Change plan settings" item;
3, in the Open interface, select click "Change advanced power settings";
4, in the pop-up Power Options interface, expand the "Show" menu, and then expand "Enable adaptive brightness", and then turn off the "use of batteries" and "power on", so that the brightness will not automatically adjust;
Method Two,
1, the mouse right click on the computer icon to select the management options, in the Open Management interface type, expand the "services and applications-services", and then in the right window to find and double-click the "Sensor monitoring service" this services;
2, then the "Start type" select "Manual", and then click the "Stop button", then click OK to exit.