All computer sounds outputting through microphone

Okay so yesterday morning I installed windows 10. I've been using it all night and my friends were telling me they could hear my games through my mic. I assumed it was just my sound being up loud. After skyping with my girlfriend she commented on it and I looked into it more. As it turns out she can hear everything I can hear. (Example: If I watch a youtube video, she can hear the audio as if she's watching it.)

I've tried everything I could find on google.. Nothing has helped.. I'm so lost and confused at this point.. Does anyone have any suggestions?

I had this problem before and I was able to fix it, but after i factory restarted my computer (virus forced me to do it) the problem returned and the same solution did solve the issue.
I've tried every possible solution to try and fix this problem again but nothing, Ive tried:
- Disabling/Enabling Stero Mix
-Lowering the stereo mix volume while its enabled
-Separating all input jacks as independant input jacks on the audio manager (fixed the problem once before but not anymore)
-ive unchecked the mics and speakers that i dont use
-I've made sure the mics arent listening to the device
None of these have worked yet, I really hope someon can help.

@rvcjew - Stereo Mix is disabled. Its not just skype though. Its happening computer wide. Teamspeak, CS:GO, Facebook Messager (In Calls).. Its just everything doing it.. I've check my bios along with nearly ever sound option I've had available..

Here is what my recording options show..

Is this what you mean?

bump