in this video http://www.usmanalitoo.com/how-to-fix-audio-sound-problem-on-windows-10/ i fix audio sound problem not working after upgrading windows pro 10 29 July 2015. Many other users also also facing problem after upgrading windows 10. in this i showed how to fix this error with 2 easy steps. After this i have already fix audio sound problem not working problem. Method 1: First Go to Notification Area → Right Click sound Icon → open Playback devices → Select your Speaker icon as default playback device. I have already select all these settings. Method 2: After default playback device Navigate to Properties → click on advanced → enhancement → check disable all enhancement Reboot the system. After reboot I hope you problem will solved. How to fix audio sound problem not working on windows 10 with 3 other working methods. www.youtube.com/watch?v=UpuHUNosvk0 Share this Video http://youtu.be/-qEOUY2cM4Q Subscribe To My Channel and Get More Great Tips https://www.youtube.com/subscribe_widget?p=usmanalitoo Follow me https://www.facebook.com/UsmanAliToo https://twitter.com/usmanalitoo http://www.pinterest.com/usmanalitoo https://plus.google.com/+usmanalitoo WEBSITES: http://www.broexperts.com http://Usmanalitoo.blogspot.com