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For some reason when I launch Robin Hood: The Legend of Sherwood and click play, as soon as I enter the gameplay my fans ramp up and become noisy for no reason, does anyone know how to solve this? I've tried both the iGPU and the dedicated one, does it anyway.

On the initial menu and when paused the fans are normal.

Can you check your FPS during gameplay? Your PC probably dishes out far more horsepower than necessary, resulting in some ridiculous amount of FPS and needs the extra cooling to compensate for it. If that's the case, turn on Vsync or limit your FPS either in-game (I don't remember if it has such option or not) or in your graphics card settings.