How to install audio equipment in win7 system

method /procedure is as follows:

1, if the device manager: & ldquo; voice, video and game controllers & rdquo; no yellow & ldquo; !”, there is no problem with the driver. If there is, the sound card driver should be installed. If the sound card driver is properly installed, it still shows: the audio device is not installed and the computer still has no sound. We use right-click: small speaker with red x in the lower right corner - playback device;

2, right click: no audio device installed, in the small window that appears, left click: display disable device; Br>

3, we use right click: speaker, in the pop-up menu window, left click: enable;

4, we use the same method to enable: headset;

5, at this time we can see: the small speaker in the lower right corner is not red x.

6. Check if the computer sound is normal.