My Lenovo laptop used to turn off its fan in Windows 7, this would save a lot of energy and battery would last maybe about 2 times more.
After upgrading to Windows 10 however it never turns off.
I wonder how can I fix it and what is the reason of this problem.
I've tried using dust removal of Lenovo energy management software, it speeds up fan for a while and in Windows 7, I would have silent fans afterwards but it's useless in Windows 10.
UPDATE
It was an Intel Graphic's driver bug and it's fixed now, if you're having this issue you need to update your Windows.