我的電腦上的“audio device"(volume control)不見了

我的電腦上的“audio device(volume control)不見了，懇求好心人士告知這個問
題該如何解決。如果需要從新下載要到哪裏去下載免費軟件。

[老沙彌]

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