Windows 10: MY headphones don't apper as and output and they won't connect properly

its simple my headphones have been working fine for every device for a year now now all the sudden when I connect them the sound places out the speakers of my dell laptop also when I looked in the outputs of the taskbar, settings, and control panel they were no where to be found this has been going on for two days Ive tried all the methods such as windows key + r or window key + x and not a single one has worked **** is going on?

:)

 

iPhone won,t connect win 10 Pro

 

iPhone won,t connect win 10 Pro

 

Volume Mute Light won´t change color

Ouch! All this for one line of missplaced code? I don´t have the skills to do all you suggest. I also discovered a problem with the HTMI Connection (via the DisplayPort and and DP/HTMI adapter). Video is fine on the TV but audio is only on the 6440. When I rh click on the speaker logo and open the box showing the playback devices I see a speaker (green checked) icon, a headphones ("not connected" but green checked when the headphones are plugged in) icon and two (!) TV Icons ( 2-Hi Def Audio device Digital sound (HTMI)), neither one says/shows "connected", even when the HTMI Cable, connected to the TV is plugged into the 6440. When I click on either one I open a box (properties?-translating from the Swedish "egenskaper") that says "activate" (or not) at the bottom but nothing happens when I click "ok". As I see it, when the HTMI cable is plugged in, it should be activated and the speakers muted, just as the headphones are/do when they are plugged in, right? Both say that the device is working properly. My old (I`m 72) head is going nuts trying to figure this out.