There is a chance that someone has already asked the question you have in mind and that someone has answered it. Before you submit a question, please search for it first. General search is located below along with links to Submit Questions and Track Your Question Status.
Why is my Windows XP computer not recording audio?
Open Sounds and Audio Devices: click Start, click Control Panel, click Sounds, Speech, and Audio Devices, and then click Sounds and Audio Devices.
To mute sound volume, select the Mute check box; to restore sounds, clear the Mute check box.
If you select the Place volume icon in the taskbar notification area check box and your sound card volume can be changed using software, a speaker icon appears in the notification area. You can change the volume by clicking the icon and adjusting the slider.