What should I do if the win7 sound card driver is not fully displayed?

After installing and playing win7 system, many friends will encounter the problem of no sound. The speaker icon in the lower right corner of the taskbar is normal, and clicking and using is normal, but there is no sound. In fact, this kind of problem is well solved. Let's share the solution with the little Petri grid below.

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.
What should I do if the win7 sound card driver is not fully displayed?

2. Check the sound card driver, right click on the computer---Properties---Device Manager---Sound, Video and Game Controller to check if the sound card driver is normal. If the yellow exclamation mark is displayed, the driver is not normal. Install the driver.
What should I do if the win7 sound card driver is not fully displayed?

3. Check the sound card driver for updates on the official website, or use the driver wizard to install and update the driver.
What should I do if the win7 sound card driver is not fully displayed?