Win7 system sound is disabled how do I recover?

Win7 system sound is disabled how do I recover?

1, you can do a simple inspection. For example, audio power, wiring is normal, chassis front or rear interface is normal. If everything is all right, then you can proceed to the next step '

2, open the Device Manager, view the "sound, video and game controllers" directory. Typically, you will find that the device is not displaying properly. The following figure, Realtek high Definition audio Normal, but the ATI HDMI Audio column is marked with a yellow exclamation mark '

3, open the Drive Wizard, we recommend download the latest Driver Wizard Beta 2. Looking at "multimedia devices" under "Driver Update", the interface provides a complete list of drivers that can be updated. The following figure, Realtek Rui Yu hdmi audio driver version 2.55; Realtek HD Audio Audio driver version 2.57;

4, download the installation of the wizard to provide a new driver, restart the system after all the problems will be solved.