我的电脑上的“audio device"(volume control)不见了

我的电脑上的“audio device(volume control)不见了，恳求好心人士告知这个问
题该如何解决。如果需要从新下载要到哪里去下载免费软件。

[老沙弥]

Please try the following to see whether it works
if not, please let me know and I will see whether you can help you out on this issue

1. go to control panel to see whether sounds and audio device is listed, if it it listed there,then

2. right click your task bar at the bottom
click properties
click custom
click restore defaults