Win7 no sound how to do sound card driver also shows incomplete solution

After installing the win7 system, many friends will encounter no sound problems, the speaker icon in the lower right corner of the taskbar is normal, click to use is normal, but there is no sound. In fact, this kind of problem is well solved. Let's share the solution with you.
1. First check if the connection of the device is normal, such as the speaker connection of the desktop computer and whether the computer is safe.



win7 sound card driver display is not complete?
2. Check the sound card driver, right click on the computer---Properties---Device Manager---Sound, video and game controller, view the sound card driver Is it normal? If the yellow exclamation mark is displayed, the drive is not normal. Reinstall the driver.



win7 sound card driver display is not complete how to do?
3. The official website to see if the sound card driver is updated, or use the driver wizard to install the update driver.



win7 sound card driver display is not complete how to do?