Whenever you are going through Lenovo laptop no sound issue. it can be due to several reasons. (1) Driver issue. (2) Settings issue. (3) So first of all, you should check the mute functions, ensure that you have not muted the sound. in such a case, you need to unmute the computer. (4) If it still does not work, you need to uninstall the audio driver and follow the instructions to fix the problem. (5) How to fix Lenovo laptop no sound problem.