To play most streaming media, you must decompress the compressed data before playing it. The file that decompresses the information is known as a codec. You must have a codec installed on your computer before some media files can play. If a required codec is not available on your computer, Windows Media Player attempts to download and install it.
This error indicates that the codec downloaded but then failed to install automatically. You may need to restart your computer to install the codec. Typically, you are prompted to restart your computer, but the prompt may have failed. Restart your computer and try to play the file again.
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