What should I do if the NumLock key of the Win7 keypad is invalid?

Everyone knows that the NumLock key on the computer keyboard is used to open and close the computer keyboard, but sometimes this button will be invalid, no matter how it is pressed or not, many people may think that the keyboard of the computer is broken, in fact, it is big. In most cases, there is a problem with the win7 system setup. We only need to make a simple adjustment to get back to normal...

1. First, we click on the "start" in the lower left corner of the computer, and then can be seen that the dialog system is running, as shown; or shortcut key while holding down the win + R, and then may be cut to run the dialog


2, then we enter the input box " OSK & rdquo ;, click OK after the system will pop up the virtual keyboard, as shown


3, we find in the lower right of the keyboard " options ", then click

4, then will pop up another " options " dialog window, we note that at this time " open the numeric keypad " front has not been checked


5, this time to click on the check And then confirm to quit, at this time the NumLock button in the lower right corner of the virtual keyboard lights up, This time the general problem can be solved, of course, the keyboard hardware broken exception