Windows 7 media player album art not updating
If the files are not importing or they are stored in a separate location then they must be manually added to the library.
METHOD 1 - Manually add Album art using Windows Media Player 12 1.
Then, find replacement album art and paste it into the correct album.
Or is there an interface to the Media Player library, so I can tell it what the album art is?
Windows Media Player (and every other player which displays album covers) uses tags to retrieve the pictures.
Interestingly, the address it shows is not the one shown in your screenshot.
I have found a number of relevant threads showing this problem which may be of help, some dating back to 2010 like this one...