I was working with a customer and when ever he plugged in his speakers they would never show up in Audio Devices! However they did work fine if he would plug them it into any other computer. So i knew the speakers were good. The fix for this issue turned out to be very simple .
Follow these steps:
1. Right click on the volume icon in the taskbar.
2. Click on playback devices.
Notice the speakers are not showing up!
3. Right click on empty space within the window and click on show disabled devices.
YAYY! Speakers have appeared!! 🙂
4. Right click on the speakers and then click enable.
5.Just click OK and you should be all fixed.. 🙂
Let me know if this helped you out in the comments below!
Post by Troy Witmer