Maxxter Microphone is Picking up Sound from Headset

So, to get the easy thing out of the way, this is what I tried already:

- Disabling microphone booster (Works, but mic is to quiet. So MIC booster is required)
- Using other headphones (Also works, but is really annoying, wanne fix this)
- Muting all other sounds (Dident work)

I got these PC specs on Windows 8.1:
Processor Intel(R) Celeron(R) CPU B800 @ 1,50GHz 1.50 GHz
Installed RAM 6,00 GB
64-BIT operating system, x64 based processor

Ill explain the problem:
If purchased a headset, its from Maxxter and it is really good! Only problem is that is I skype with my friend, then can here everything from music to games! All the sound that I am hearing, they are hearing to! Only thing they dont hear is themself! If tested this on different people, and like I sad, with a other pair it doesent happen.

I need to fix this, cause im a youtuber and that is so annoying! So please respond fast!
 
Disabling microphone booster (Works, but mic is to quiet. So MIC booster is required)... You may be over-driving the mic. You can't turn up the mic through Windows instead of using MIC BOOSTER?
 
Well! I am using the windons mic booster and its on 24 DB! If I lower it to 12 it still happens and when I disable it it stops but mic is to queit!
 
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