Question / Help Windows sound is in microphone track too

[masafi]

In this video you can see, that windows sounds (in this case music) dublicates into microphone track too.
So even if i off speaker track, there is a little bit of windows sound.
My microphone is fine, because in this video it was turned off :/
Help, please =(
Logs https://gist.github.com/57c63be15755564cdbb7 and https://www.dropbox.com/s/3uflfquykuyj84m/logs.rar?dl=0

 

[Osiris]

There is nothing in OBS that can cause this.

 

[masafi]

There is nothing in OBS that can cause this.

What can it be?
In windows nothing like that in microphone track

 

[masafi]

At least, say how i must google that, because i don't know. =(

 

[masafi]

Solution - off sound mixer in windows