If your computer is having problems playing video or audio files in Windows Media Player, try using the Windows Media Player Settings troubleshooter to fix the problem. The troubleshooter checks the configuration and network settings for Windows Media Player to make sure that you can play content you've downloaded and saved to your computer, or content streaming over a network or the Internet.
To make sure you have the most up-to-date troubleshooters from the Windows Online Troubleshooting Service, your computer should be connected to the Internet. For more information, see Troubleshooting in Windows.
Open the Windows Media Player Settings troubleshooter by clicking the Start button , and then clicking Control Panel. In the search box, type troubleshooter, and then click Troubleshooting. Click View all, and then click Windows Media Player Settings.
For more information about playing audio or video files in Windows Media Player, see Play an audio or video file.
Article ID: MSW700021