Use the Windows Audio Properties to install an active mixer device. Though Windows XP normally starts the Windows Audio service during the sound card installation process, it sometimes fails to start. Choosing Automatic Startup ensures the active mixer device works correctly each time you log in.Continue Reading
Click the Start button on the Windows taskbar, and click Run from the Start menu pop-up window. Type "services.msc" without quotes in the Run window, and press Enter. Wait a few moments for the Services window to open.
In the Services window, scroll down the list until you see Windows Audio. Double-click the selection to open the Windows Audio Properties window. Select the General tab, and view the Service status.
Check the default Startup type. Click the drop-down arrow, and select Automatic. Click the Start button to ensure the service is running. Alternatively, choose the Automatic startup type, and click OK to exit the Windows Audio Properties window. Turn up the volume using the audio icon in the system tray. Close the Services window, and click the Start button on the taskbar. Choose Turn Off Computer, and restart your computer. Turn on the computer, and listen for the startup sound.