A bit of background - I was watching video online through my headphones a few days ago when a pop-up notification appeared to let me know "Windows can now play sound through this device" (headphones are plugged into their regular port, no USB stuff or whatever.) It began treating my headphones as if they were an external device, and kept disconnecting and reconnecting while making a Windows chime, though my audio port is undamaged.
I naturally restarted my computer, and while the "Windows can now etc." has stopped, a new box now pops up, prompting me whether I plugged in a mic or a line in. This happens often. Beyond that, my computer does not treat my headphones as the sole audio output when they're plugged in, that is, sound plays through both my headphones and laptop speakers. I have fidgeted around with the audio settings, but nothing seems to work, because "Speakers / Headphones" are one unit to be modified at the same time and I don't know how to turn my speakers off.
I'm really sick of this and would appreciate any help, my laptop is far too new for things of this nature to be happening. I've looked around nothing I've found seems to deal with the exact problem I have. Thanks in advance for any help you all have to offer.