Hi,
I have an Acer Aspire V5 on Windows 8 64-bit. I got a windows update about four days ago and all of a sudden, my Realtek speaker isn't working properly. When I start my computer, I can play music from VLC, media player and sites like YouTube. But once I close YouTube or VLC or reopen any program running any audio, no sound comes out. I've already updated my driver but it still isn't working. I try to configure the speaker but when I do, I get a prompt that an application running in the background has to be closed even when my browser and music players are closed. Audio also stops working when I mute and un-mute my laptop. I constantly have to restart just to get any sound but once I stop using a program with audio, Realtek stops working.
I also noticed that even YouTube is not running properly. The video loads but when I press the play button it doesn't work. And when it does play, like I mentioned, there is no audio.