PC make & model?
Sound device? (sound card name or inetgrated sound)
Download the latest sound driver from your computer mfg's website. Uninstall the existing driver. Install the new one.
After I restored my pc the sound desappered from my speakers and everytime I try to play a CD or something with sound in windows media player it says it cannot play it because there is a problem with my sound device. it also says it might be in use by another program or it migth not be fuctioning properly. I already try to fix it , but I can't. what don't understand is that my pc is new (a month with it)this problem happened after i restored my computer.