
First, right click on the sound icon & choose to 'troubleshoot sound problem'. The troubleshooter will immediately start to identify and result from the most issue.

After that reboot your system.
Third, go to start menu & type device manager and click on it. After that click on the sound option from the list and right-click on 'High Definition Audio Device' then click update driver software & choose search automatically option & complete the process.
THANK YOU