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Point to the lower right corner of the Start screen on your Windows 8 computer. Type "Control Panel" into the search field, and select the program when it displays in search results. Type "Device Manager" into the search field at the top of Control Panel, and select the program when it displays in search results. Click on "Sound, video and game controllers" to expand the list. Double-click on the name of your sound card. Verify that the audio card is listed as "This device is working properly.
The Search function will display on-screen. The Control Panel window will display on-screen. The properties of the sound card will display on-screen. If no audio card is listed, your computer is not detecting the sound card, and further troubleshooting may be required. " This indicates that your Windows 8 computer is successfully detecting the sound card.