My name is ***** ***** certified professional with over 10 years experience. I will be glad to assist you with this.
I am sorry to hear that you are having this issue.
Does the sound work when playing a music file?
okay, which version of windows operating system are you running on the lenovo? 10,8,7, etc...
okay, thank you.
Try using the Microsoft Sound Troubleshooter
Click Start , and then click Control Panel.
Under System and Security, click Find and fix problems.
The Troubleshoot computer problems page opens. Under Hardware and Sound, click Troubleshoot audio playback.
The Playing audio troubleshooting page displays. Click Next to continue.
Figure : Playing Audio troubleshooter
Wait while the troubleshooter checks the computer for problems.
Let me know if it works please.
did that work for you?