There can be a lot of reasons that cause the microphone not to work on your HP laptop. It can be related to hardware issues or due to an outdated audio driver. To resolve the problem, you will need to get deeper and find the actual reason causing the microphone not working. However, to ease the diagnostic and troubleshooting process, you can take the help of experts with experience in resolving the problem before. As a primary measure, you can check the microphone hardware and turn off /on to resolve the minor glitches. Also, make sure to toggle the volume switch on the microphone to a higher level. Still unable to resolve the problem? Contact us now to get immediate assistance.