I am not able to use the Mic of Lenovo B5400 laptop. I am using skype to video call and before I use the mic. But now this has stopped working. I had tried to use it again and again but the person on the other end is not able to get my audio. I want a bit help here to fix this thing. I don't have a microphone with me and now the mic has stopped working. How can I test it in windows. I think my system is updated.
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