Error message when you play a file in Windows Media Player on a Windows Vista-based computer: "Invalid File Format. (Error=8004022F)"

You are using Windows Media Player on a Microsoft Windows Vista-based computer. When you try to play a file in Windows Media Player, you may receive one or more of the following error messages:

This issue may occur if any one of the following conditions are true:

• Windows Media Player does not support the file format or the codec of the media file that you are trying to play.
• Some of the Windows Media Player files are missing or are damaged.
• The media file is damaged.
• The media file uses a codec that is not installed.
• The computer does not have audio capabilities. For example, no audio device is installed on the computer.
• The correct audio device driver is not installed or is disabled.
• Remote Desktop is not configured to play audio.

To resolve this issue, use the following methods in the order that they are presented. Test after each method to determine whether the issue is resolved.

Important Windows Media Player does not support the playback of every type of media file available currently. However, Windows Media Player does provide support for the most common types of media files. Therefore, verify that your media file is supported. If it is not supported, do not use any methods except Method 1 to troubleshoot this problem. If Windows Media Player does not support the file format that you are using, contact the distributor of the file for information about the availability of a viewer for the file.

For more information, click the following article numbers to view the articles in the Microsoft Knowledge Base:

Method 1: Verify that Windows Media Player supports the file type that you want to use

For more information about supported file types, click the following article number to view the article in the Microsoft Knowledge Base:

Method 2: Determine whether the file that you want to play is damaged

In Windows Media Player, play a different file that uses the same file name extension as the file that you could not play. If the second file plays correctly, the original file that you tried to play may be damaged. If you experience the same difficulty when you play different files that are supported, try Method 3.

Method 3: Reinstall Windows Media Player

Windows Media Player is one of the native parts in Windows Vista. To reinstall Windows Media Player, follow these steps:

1. Visit the following Microsoft Web site to download the latest version of Windows Media Player:
   http://www.microsoft.com/windows/windowsmedia/download/AllDownloads.aspx (http://www.microsoft.com/windows/windowsmedia/download/AllDownloads.aspx)
2. Click Download Now to obtain the latest release version of Windows Media Player, and then click Save to save the installation file. Save the file to a familiar location.
3. Locate the installation file, double-click it to begin the installation process, and then follow the instructions to complete the installation or upgrade.

Method 4: Reinstall or upgrade to the latest version of Microsoft DirectX

For more information about how to reinstall or upgrade DirectX, click the following article numbers to view the articles in the Microsoft Knowledge Base:

Method 5: Verify that you are using the correct codec for the media file

For more information about how to install, verify, and troubleshoot media codecs, click the following article numbers to view the articles in the Microsoft Knowledge Base:

For more information about Windows Media Player, visit the following Microsoft Web site: For a Microsoft Windows XP version of this article, click the following link to view the article in the Microsoft Knowledge Base: