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I keep my audio files tagged in windows media library.

I have media information using a ID3 tag editor. Album Arts(thumbnails) are not updated in the media library. But correct album arts are displayed while playing the media.

How I can I force windows media player to update the album art info?

I think the album art thumbnails are cached by wmp.

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Which version of WMP on which version of Windows? You mention ID3, so I assume that these are MP3 files? How exactly are you changing the album art of the files? – Tim De Baets Aug 11 '13 at 11:21
As i'm out of my desk, i can't give u the wmp version. But it's the default version with windows8, so i guess wmp13. I use a tag editor(mp3 tag) for tagging. – Khaleel Aug 12 '13 at 4:49

Make sure that WMP is closed, then go to the folder containing the audio files and delete the hidden Folder.jpg and AlbumArt*.jpg files. These files contain the album art that was automatically downloaded by WMP, so it might be a good idea to back them up first.

If you can't see these files, make sure that Explorer is set to show hidden files and folders, and to show protected operating system files.

Then start WMP again. The songs for which you manually deleted the old, cached album art should get updated with their new, embedded art.

share|improve this answer
FYI: Its not just one or two album. There are a number of albums (1000+). Deleting from each won't be an easy task. – Khaleel Aug 14 '13 at 3:56
You can use the search functionality in Explorer to find all *.jpg files in your Music library. Then these files can be deleted in one go. – Tim De Baets Aug 15 '13 at 15:07
I have a better way to do that using a shell script. FYI: Album arts are updated in the thumbnails(explorer) but not in wmp. – Khaleel Aug 16 '13 at 4:41
For the album art to get updated, you may also need to clear WMP's art cache, by deleting all hidden JPG files in the %LOCALAPPDATA%\Microsoft\Media Player\Art Cache\LocalMLS folder while WMP is closed. – Tim De Baets Aug 17 '13 at 18:48

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