I have a surface pro 3, with all updates installed as of Sept 5 2016.
Recently, the fan comes on immediately after powering on and the device is overheating if I actually do much of anything.
I have disabled all start up programs.
I am not running CPU intense applications like video services or games.
I use outlook, occasionally word, excel. Also running Edge and Chrome from time to time.
I have run task manager and nothing is eating CPU.
My research online hasn't come up with anything that works. I would really like to avoid rebuilding the device...