Windows 7 Microphone ingame sound/background noises

[TheUnknown]

3-4 day's ago my mic was working perfectly, No background noises just my voice but now my mic records my ingame sound and wen i am pressing key's. Wen i go in recording devices,Properties then click listen to device on my microphone i hear sound on my left ear

 

[TheUnknown]

No one knows how to only record your voice with the mic?

 

[TheUnknown]

I found out the problem, I had to plug it into the back of my computer.
edit:nvm the problem is still here, Look's like wen i plug the mic in the back its fine then after awhile i have to switch to the front. Odd