To resolve this issue, restore your computer to the original hardware configuration or to the original BIOS settings. Restoring your computer will probably correct these issues. If you can resolve the DRM issue by restoring your hardware configuration or BIOS settings and if you plan to change hardware components in the future, follow steps 1 through 5 later in this section. If you have not made hardware changes or if restoring the hardware configuration does not correct the issue, follow steps 3 through 5.
Caution: If you go directly to step 3 and you do not have a recent backup of your licence, you may not be able to play protected files that you previously downloaded. If you experience this issue, contact the content provider to determine how to download new licenses for these files. An example of a content provider is the store where you bought the protected files.
1. Back up your licence. To do this, follow these steps:
a. In Microsoft Windows Media Player, on the Tools menu, click Manage Licence in Windows Media Player 10, or click Licence Management in Windows Media Player 7.x through Windows Media Player 9.
To change the backup location, click Change, and then select a location where you want to store backup copies of your licence.
b. Click Back Up Now.
Note The licence issuer, such as the online store where you bought the protected file, determines whether you are permitted to back up a specific licence. Therefore, you may not be able to back up all your licences. If you cannot back up the licence for a particular file, you cannot restore that licence after you change your hardware component. If you cannot restore a licence, you cannot play the protected file.
For more information, visit the Web site of the licence issuer to determine whether they support the Backup and Restore feature of Windows Media DRM.
2. Make the changes that you want to make to your computer hardware.
3. Reset Windows Media DRM by deleting all the files in the Windows Media DRM folder. Note that the Windows Media DRM folder is a hidden system folder. To view hidden files and folders, follow these steps:
a. Click Start, and then click My Computer.
b. On the Tools menu, click Folder Options, and then click the View tab.
c. Click Show hidden files and folders, and then click to clear the Hide protected operating system files check box.
The following are the typical locations of the Windows Media DRM folder, depending on your operating system version: • Windows Vista: C:\ProgramData\Microsoft\Windows\DRM
- Microsoft Windows 2000 and Windows XP: C:\Documents and Settings\All Users\DRM
- Windows 98: C:\Windows\All Users\DRM
- Windows Millennium Edition: C:\Windows\DRM
If you cannot find the Windows Media DRM folder, the exact location of the folder on the computer is stored in the following registry key. Make sure that this key points to a valid path:
HKEY_LOCAL_MACHINE\Software\Microsoft\DRM\DataPath
Note By default, the path is displayed in binary format. To see the path in plain-text format, double-click DataPath. In the Edit Binary Value dialog box, the path is displayed in the column on the right.
4. Individualize the Windows Media DRM system.
To install the latest Windows Media DRM components, see the instructions on the following Microsoft Web site:
http://go.microsoft.com/FWLink?LinkID=34506 (http://go.microsoft.com/FWLink?LinkID=34506)
5. Restore your licences. To do this, follow these steps:
a. In Windows Media Player, on the Tools menu, click Manage Licences if you have Windows Media Player 10, or click License Management if you have Windows Media Player 7.x through Windows Media Player 9.
b. Select the location of the backup copies of your licences. If you need to, insert the floppy disk where your licences are stored.
c. Click Restore Now.
