I dont have sound on my windows 7 pc,i dont have sound using headphones and speakers (it just says "not plugged in" even when it is)
sound in the background (chrome) headphones not plugged in http://imgur.com/a/JZgGY
options 1 http://imgur.com/a/dCeNq
options 2 http://imgur.com/a/dF7Qf
with headphones plugged in http://imgur.com/a/xZ65a
drivers http://imgur.com/a/tKDlH
and the thing that is the most important in my opinion,motherboard http://imgur.com/a/8Gitz
Also,important thing to note is that I used sound from monitor for a short time,but I installed two new systems since then and data should have been wiped probabbly.