I do not have sound. It just happened. There's nothing wrong with my speakers. I took a look under "Device Manager" and noticed that all my "Other Devices" have a yellow question mark with an exclamation mark. The "Other Devices" are:
1. Ethernet Controller
2. Multimedia Audio Controller
3. PCI Modem
4. USB Controller
5. Video Controller.
How do I fix it?
Strange you are only complaining about sound with all those drivers missing ,how are you connecting to the internet !!,
Anyway ,you need to use the motherboard disk that should have come with the computer to load drivers for these devices ,or with the make and model # go the the computers makers website