How to Detect Audio Devices
From time to time you may encounter an error message that says "No Audio Device Detected." Problems with your audio device can be caused by issues with internal or external speakers, or the problem could be an audio driver issue. Sometimes, the problem may even be with your media software. Either way, troubleshoot this issue to ensure that your computer detects audio devices.
Restart your computer. Sometimes, a simple restart can troubleshoot issues with your audio device. This gets rid of any other program that may be interfering with your audio device.
Use a program other than your default media player to play the audio file. Right-click any audio file and select "Open with..." Choose a different software. If the problem still persists, continue to the next step.
Disable and then enable your sound card. Click the "Start" menu and select "Run..." Type (without the quotes) "devmgmt.msc" and press "Enter." Scroll down the list until you see the entry for "Sound, video and game controllers." Click to expand the entry and see your audio device. Right-click it and select "Disable." Wait for a few seconds, right-click it again and select "Enable." If this doesn't solve the problem, continue to the next and final step.
Update driver software. Right-click your audio device again (from Step 3) and select "Update Driver Software..." Follow the on-screen prompts to complete the update. Restart your computer.