[Solution] No speakers or headphones are plugged in

Error Message in Tray

Sometimes, you may unexpectedly see the error message in a tray – No speakers or headphones are plugged in.

This problem mostly happens with laptops (as far as I know), and mostly with Realket HD (High Definition Audio Device). There could be different reasons for that error message and you can use different fixes.

Actual Fix

1. At first, try to sort out problem automatically – enter Control Panel > TroubleShooting > Hardware and Sound > Playing Audio. And then see, if Windows Troubleshooter can fix that. If yes, then GOOD! If not, then continue reading.
2. Another problem could be audio drivers. Uninstalling your current driver and reinstalling the latest driver for your model (exactly) could solve the problem. Also, note that  you install 32-bit or 64-bit driver – whichever your hardware supports.
3. If you installed a new video-card or made some hardware change, then BIOS could have disabled “onBoard Audio” setting. So, you should enter BIOS (click repeatedly on DEL or F2 or F10 or like that) during booting. Then find integrated devices and enable Integrated audio (or called as onboard audio). Exit  & Save changes and now the problem should be gone
4. You can also try this if you couldn’t yet fix it: https://youtube.com/watch?v=FfxKKVi2cwo
5. You can try also this: https://youtube.com/watch?v=9rodIC7GMV0
6. In my case, this problem happened 2 times, and both times, the same thing happened to my pc (dont know why): Turn Off Laptop; Remove Power cable + Battery; Then open back-case, unattach and attach back CPU, unattach and attach other visible cable. then turn the Laptop back, and I have sound working! This happened 2 times! (i don’t know, maybe in your case, just removing power+battery for 20 seconds maybe enough to refresh laptop).

You can find other solutions too  in google – No speakers or heaphones are plugged in.