Hi well yesterday my Dolby Advanced Audio was having an error from the Win 8 to Win 8.1 Upgrade so I had to check the internet for some answers how to fix it and I saw a forums about this errors that I need to uninstall the Sound Driver then it will make me restart my Laptop then after that It fix but I got some errors again, I think I uninstall some other Sound Drivers so when I'm testing my sounds I hear some static like I don't know how to explain this, in both speakers of my laptop I hear it and with my headphones.
EDIT: how I test my sound and hear that kind of weird static like sound was in the bottom right panel the Sound Bar when you press the Scroller again and again I hear it.