1、 The cause of laptop keyboard failure - press the letter key to turn it into a number
Don't panic when you encounter this situation, because it is not the hardware failure, but the Num Lock function key. This kind of phenomenon often occurs in 14 inch models. Because 14 inch models usually do not have a keypad area, they are integrated in the caption key area. At this time, you need to press the corresponding Num Lock function key.
2、 Laptop keyboard failure cause - drive failure
Right click My Computer and Computer to open system properties, and select Hardware Device Manager. The default keyboard driver is Standard 101/102 Key or Microsoft Natural PS/2 Keyboard. Right click Update Driver, and the Hardware Update Wizard will appear: Select Install from List or Specified Location (), click Next, and select Do Not Search.
Choose the driver you want to install. " Click Next to enter the Select Device Drivers to Install for this Hardware page. Remove the check box before "Show Compatible Hardware". Select "Japanese PS/2 Keyboard (106/109 Key)" in the "Standard Keyboard Model" column, click "Next", and the "Update Driver Warning" pops up. Click "Yes".
Continue to click "Yes" in the "Confirm Device Installation" window. Complete the Hardware Update Wizard and restart your computer.
3、 The cause of laptop keyboard failure - software compatibility