The problem is, when the keyboard lid is connected, a virual space will be pressed and disturbs my use(search, change the input language, and input characteristics ).
For example, when I want to use "Windows" key to call the start menu, the keyboard switch will be activated since the hot key for this is “Win+Space” and the computer simply changes my input language. Or, if I go to the start menu, the Cortana will be activated before I do anything else since the virtual space keeps typing and leaving a lot of white space in Cortana.
The product I use is Surface Pro 3, and the keyboard lid I use is the one for pro 4.
The problem strats to occours after last win 10 upgrade (10,Jan).