Notebook WIN8 screen to the brightest is not bright enough

Recently received a second-hand notebook, Lenovo YOGA13.
Received when the system is just installed, after the activation, the software, all kinds of finished after the monitor is always too dark.
is to adjust the brightness to the brightest degree is already very dark, and then Baidu, said to be a service needs to be banned, because of system compatibility problems =. =

Ok~ into the Task Manager, find Sensrsvc (Sensor monitoring Service), after the stop is good ~ ~
The original is the highest brightness, a forbidden after good dazzling AH =
Say this notebook is pre-installed is WIN8 seller to reinstall the system is also for data security = = But the serial number is not given to me
Forget it.

Notebook WIN8 screen to the brightest is not bright enough