Windows Media Player can't play the file because there is a problem with your sound device, such as a sound card or sound controller.
Things to try
- Quit other programs that might be using your sound device, and then try to play the file again.
- Install an updated driver. To see if an updated driver is available, use Windows Update, or go to the sound device manufacturer's website.
- If you have multiple sound devices installed on your computer, try using a different one. The selected sound device might not support Secure Audio Path (SAP).
- To use a different sound device:
Make sure your sound device is working properly. To troubleshoot device problems, refer to your sound device's documentation.Make sure you have a sound device installed on your computer. If not, install a sound device (such as a sound card), and then try to play the file again. If you can't install a sound device in your computer, you might be able to resolve the problem by attaching USB-based headphones or USB-based speakers to your computer instead.
- Depending on which version of Media Player you're using, either select Organize, and then select Options, or select the arrow below the Sync tab, and then select More Options.
- Select the Devices tab, and then double-click Speakers.
- In Select the audio device, select a different device, and then select OK.