How to disable the notebook's own keyboard after the notebook is connected to an external keyboard

Turn off the laptop keyboard , Please refer to the following methods ：
Search in the search bar in the lower left corner cmd, Run as administrator
Enter the following code in the pop-up window , And return .
sc config i8042prt start= disabled
restart , Laptop keyboard off
If you want to recover , As long as the external keyboard enters the following code in the same way , Just restart .
sc config i8042prt start= auto