Here are some solutions to solve your issue of the HP keyboard not working. Follow the given points to proceed. 1. Try to restart your HP laptop. 2. If you have locked your keyboard unknowingly then unlock your keyboard by pressing the right shift key for almost 8 seconds to troubleshoot your issue. 3. Check if there is Cortana enabled on your laptop, if yes, then turn off Cortana on your laptop. 4. Make sure that there is no external keyboard connected to your laptop. Disconnect if there is an external keyboard connected to your laptop. 5. Update your keyboard drivers to solve this issue. Read here also: PC Restarts While Gaming?