Resetting Windows Media DRM

This information originally came from here:

http://www.microsoft.com/windows/windowsmedia/player/webhelp/default.aspx?&id=C00D2798

Windows Media Player Error Message Help

You’ve encountered error message C00D2798 while using Windows Media Player. The following information might help you troubleshoot the issue.

Cannot perform the requested action

Windows Media Player cannot perform the requested action because a problem occurred with the Windows Media Digital Rights Management (DRM) components on your computer.

DRM is the technology used to protect files from unauthorized distribution or playback. Online stores that allow you to purchase and download songs or videos typically sell files that are protected.

To resolve this problem, reset the Windows Media DRM system.

To reset the Windows Media DRM system

    Warning Resetting the DRM system will delete the licenses for your protected files. To play, burn, or sync any protected files on your computer, you will need to download new licenses from your content providers. In some limited cases, it might not be possible to download new licenses for certain files. Before resetting your DRM system, contact your online store for more information about its policies regarding license download. In addition, if you are running Windows XP Media Center Edition and you reset your DRM system, you might not be able to play any copy-protected TV shows that you have previously recorded.

  1. Verify that Windows is configured to show hidden files and protected operating system files.

    To show hidden and protected files

    1. Click Start, and then click My Computer.
    2. On the Tools menu, click Folder Options, and then click the View tab.
    3. Click Show hidden files and folders, and then clear the Hide protected operating system files check box.
  2. If you are running Windows XP Media Center Edition, stop the Media Center receiver service (ehrecvr).

    To stop the ehrecvr service

    1. Click Start, and then click Run.
    2. In the Open box, type cmd.
    3. At the command prompt, type the following:net stop ehrecvr
  3. Open the Windows Media DRM folder.Typically, the DRM folder is located at C:\Documents and Settings\All Users\DRM. If you cannot locate the DRM folder on your computer, perform the following procedure.

    To find the location of the DRM folder

      Warning Incorrectly editing the registry may severely damage your system. At the very least, you should back up any valued data on the computer before making changes to the registry. For information about backing up and restoring the registry, see Windows Help and Support.

    1. Click Start, and then click Run.
    2. In the Open box, type regedit.
    3. Expand the HKEY_LOCAL_MACHINE\Software\Microsoft\DRM key.
    4. In the pane on the right, double-click DataPath.
    5. In the Edit Binary Value dialog box, look at the column on the right to find the location of the DRM folder.
  4. Select all of the files in the DRM folder, and then press DELETE.
  5. Restart your computer.

Additional Assistance

For information about obtaining technical support from Microsoft, see the Troubleshooting Windows Media Player page.

For general information about using Windows Media Player and other Windows Media technologies, see the Windows Media Player FAQ page or the Windows Media Knowledge Center.

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