i dont know why but when i plug in my headset in my laptop and open music, i get sound from my headset and speakers
i think my brother did this >_> and i want to fix this, if anyone knows how please help
i hate when he touches my laptop

btw im using windows 7 and i think my speakers are Realtek High Definition Audio

There's no problem in the way that you're describing it

i mean if you plug in your headset then the music should only come out of the headset but now it also comes out my normal speakers from my laptop

So your saying it comes out of your regular speakers and the headphones?

Oh, your HD Audio Manager crashed. Go to Start, type "Audio Manager" and open it again, then minimize it to tray, unplug your headphones, and put them back in, and it should be fine.

thx it worked :)