I can hear myself in the mic

I have a headset and I can hear a noice and everything I say. The problem goes away when I'm talking to someone on skype or (I don't know why) when I open a tab recording under sound in control panel.
Please help me.
 
Go to Sound properties (control panel), Playback, right-click on your mic then Properties, Listen tab, make sure 'Listen to this device' is turned off.
 
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