As with any database, information that is stored in the database or the database itself can become corrupted. The Windows Media Player library database can usually recover automatically from database corruption. However, the database may become corrupted in such a way that Windows Media Player cannot recover the database.
1. Click Start , click Run , type %LOCALAPPDATA%\Microsoft\Media Player , and then click OK .
2. Select all the files in the folder , and then click Delete on the File menu.
Note You do not have to delete the folders that are in this folder.
3. Restart Windows Media Player.
Note Windows Media Player automatically rebuilds the database.
If this does not resolve the problem, clear the Windows Media Player database cache files . To do this, follow these steps:
# If you are running Windows 7/Vista, click Start , click Run , type %LOCALAPPDATA%\Microsoft , and then click OK.
# Select the Media Player folder , and then click Delete on the File menu.
# Restart Windows Media Player .
Note Windows Media Player automatically rebuilds the database.
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