Check wireless keyboard batteries and wireless adapters.Check the wireless keyboard power switch.You press a Lock key once to activate it, and you press that Lock key again to deactivate it: Caps Lock: Pressing this key works like holding down the Shift key, but it works only with the letter keys. The three Lock keys are special keys designed to change the way other keys on the keyboard behave. If that doesn’t bring the keys back to life, or if the Keyboard icon isn’t even visible in the Device Manager, head to the laptop manufacturer’s support page and install the latest drivers for the keyboard. Open the Start menu and type “Device Manager.” Press Enter, and expand the Keyboards section. Why my keyboard suddenly stopped working? How can I test if my Keyboard is working?.
