What are you running IDT, Realtek? if so uninstall all drivers that control anything related to audio (Razer, Dolby, Beats, APO, DTS. etc) All of sound drivers in device manager and disable any enhancements in playback devices menu and then reboot, windows should automatically install generic drivers so you at least have sound again and then re download drivers from manufacturer website and install them if they fail to install you can try to disable driver signature reinforcement through advanced restart settings and try to reinstall drivers again and reboot. Also check to see if you have any software (like games that installed any 3rd party audio stuff and uninstall that) good luck!