Windows unwanted music

Hi

I've got LMS 7.9 install on my windows 8.1 and i select my NAS folder to search for music (i mount this folder on a disc, so for example X:/Music is my path to my NAS folder).

When scan is done, i've got this kind of music on my library :

file:///Program%20Files%20(x86)/Steam/tenfoot/resource/sounds/ambient/amb_bigfoot_backing_part_01_04.mp3

file:///Windows/WinSxS/amd64_microsoft-windows-shell-sounds_31bf3856ad364e35_6.3.9600.16384_none_07d0dc 3d89809d9b/Windows%20Critical%20Stop.wav

file:///Program%20Files%20(x86)/SqueezePlay/lua/applets/SetupSoundEffects/sounds/select.wav

etc...

Why my LMS add music outside folder i choose ?

Thank