Laptop keyboard failure is generally caused by keypad failure, and the solution steps are as follows:

1. First, open the computer settings, find the control panel, click "Change keyboard working mode", then check all the options to make the keyboard easy to use, and click "OK".

2. Then modify the driver of the notebook keyboard, open My Computer, select the hardware tab, and then open the Device Manager. The default keyboard driver is "standard101102 key or Microsoft natural PS/2 keyboard".

3. Click "Next" to enter the "Device Driver code signing" page, click to remove the check box before "Display compatible hardware", then select "Japanese PS/2 keyboard (106/ 109 key)" in the column of "Standard keyboard model" and continue to click "Next".

4. Finally, go back to "Start", then click the control panel, click to change the keyboard and input method, then make a choice according to the input method you commonly use, continue to click to complete the hardware update wizard, wait patiently for a few seconds, and then restart the computer.