Hey ya so I'm having pretty much the same problem and I'm not finding anything you guys are talking about. Here's my problem. Like the rest of you I'm having troubles with recording the audio from my computer using the stereo-mix setting in audacity. This occurs only when my usb microphone is plugged in. I understand that it has something to do with changing the inputs or outputs or something I'm just having trouble understanding where those are on my computer. My setup is this. I'm running on a laptop that has windows technical preview. My microphone is directly plugged into my laptop via usb (obviously) and my headset plugged directly into the microphone. If someone could please tell me step by step where to go on the computer and what to do to fix this so that I can have my microphone plugged in and also record my computer that would be great. I know this is over 2 years old but I'm hoping someone sees this and is able to help.