Malware could have attacked your system's audio components.There could be an issue with your microphone or speaker.The audio services could have stopped working.Any recent change in your system's settings.Your computer could be running on outdated audio drivers.The audio jack could be loose or broken.The following are some of the major reasons for getting the audio not working in Windows 10 problem. Part 1: Why is My Audio Not Working in Windows 10? Part 3: Bonus Tip: Recover Lost/Deleted Audio Files from Computer with Recoverit.Part 2: How to Solve the Audio Not Working Problem?.Part 1: Why Is My Audio Not Working in Windows 10?.