Win8 system under FN+F8 (NumLock) can not switch keypad

Equipped with a WIN8 system, has been configured with the large keyboard, also did not find the keypad can not be used. Later did not have a large keyboard, typing with a small keyboard when the right hand to press the letter key, all out, is the keyboard button on the number of keys, word keys. So I like the previous Win7 system under the same operation, press FN+F8, but no response.

Solution: Press "Windows Key" + "R" to bring up the running window, enter "OSK", open "on the screen Keyboard"

Press "Fn+numlock", as shown in the previous illustration. The state is FN pressed, NumLock pressed up.

Entangled for a long time to solve the problem.