System sounds no in speakers

[polas]

I do not know what the hell is happening with my windows system sounds.
In headphone there is a sound but in the speakers no.

How to fix this problem ?

 

[polas]

I have installed and updated windows but system sounds are not working through speakers.

 

[saul1991]

i got the opposite problem when i plug in the headphones the music plays through the speakers instead of the headphones or earphones