Win7 there's no sound. Audio driver also shows incomplete solution

After installing play Win7 system, many friends will encounter no sound problems, the taskbar right corner of the speaker icon Normal, click Use is normal, but there is no sound. In fact, this kind of problem is very good to solve, the following create e net Small series lattice and you share the solution.

1. First check the device connection is normal, such as desktop speakers connected, the computer is OK.

Win7 sound card driver display not all how to do?

2. Check the sound card driver, right click on the computer---properties---Device Manager---Sound, video and game controller to see if the sound card driver is normal, such as a yellow exclamation mark indicates that the driver is not normal, reinstall the driver.

Win7 sound card driver display not all how to do?

3. The official website to see whether the sound card driver has updated, or with the Drive Wizard to install an updated driver can be.

Win7 sound card driver display not all how to do?