Help with microphone.

I dont know where to put this thread else. Long story short - I was talking with my friend he was replying me, everything fine, after like 40 min of talking I watched clip and asked him question he didnt replied so I just texted "him can you hear me ?" He replied with "no". I heard him fine. So i thought me must be trolling me and went to voice manager and he was right. My microphone didnt worked. I dont know how or why it stopped tried, unpluging vires, turning on/off microphone etc. Also tried some options on google. Still nothing. I didnt even touched vires or my microphone so I dont have clue why it stopped working for me. I can hear just fine. It deosnt work on any programs - skype, teamspeak...
I was using skype when talking with him. My headset + microphone is steelseries siberia v2.
Please if someone also had this problem and know how to fix it help me :/ .
Thanks.
BTW I talked to him this morning microphone worked just fine. But now it stopped.