Two days ago I started having no sound coming from my computer. I've tried everything to fix it. It's not my speakers, I've tried using over 5 headphones and 2 different speakers... but nothing. The computer even has built in speakers and when there is no speakers or headphone plugged in the sound should come out the computer itself, but it doesn't. I downloaded new driver to see if that fixed it, but nothing works. I troubleshooted all the audio drivers and software on the computer but it says there is nothing wrong with them and that they are working fine (but they aren't! ). What could be wrong?