Do you have audio driver?
Go to the manufacturer site and download the sound card driver. Or write back your exact PC model.
If U do have a driver and it isn't working, then try updating it or try another version of it.
U can also check in Services (start>run>msconfig) if Windows audio is checked.
Hi veteran me1 I'm also having an issue and would love your help. I can't uninstall an unhelpful realtek audio contoller which was recommended to me. I also need to replace my sound and find the correct multimedia audio driver after mistakenly uninstalling the correct original. I tried detecting correct software in device manager; doesnt find any software to install. Nor do I have the installation disc. A couple of software packages which are supposed to detect correct driver for your system gave me the wrong realtek info which almost crashed my system on installation. Help!