Headphones and speaker sound

[VGM8Richard]

I recently had a problem that my speakers didn't make sound, this is fixed.

Now when I plug my headphones in, I get sound perfectly through my headphones but the sound is still also coming out of my speakers. Not sure how/why this is, any idea?

 

[Colif]

In realtek HD Audio Manager, look in options

Under playback devices, do you have Mute the rear output device, when a front headphone is plugged in selected?
Other choice is Make front and rear output devices playback two different audio streams simultaneously