Middlebury

CD or DVD ROM

CD/DVD Drive does not show up in Windows

Description: User brought in his Dell Lat D620, the cd rom was not found. Device manager shows exclamation point and says that the error is "Code 37" There is also a location of "0". The description also includes that the driver is corrupted.(Cannot Access CD-ROM and "Code 31" Error Message in Device Manager)

Cause: The problem was only that some program adds a registry key, and it causes the entire drive to fail.

Solution: (Source: http://support.microsoft.com/?kbid=270008) To manually delete the UpperFilters and LowerFilters registry values, follow these steps:

  1. Start Registry Editor (Regedt32.exe).
  2. Locate the UpperFilters value under the following key in the registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}
  3. On the Edit menu, click Delete, and then click OK.
  4. Locate the LowerFilters value under the same key in the registry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}
  5. On the Edit menu, click Delete, and then click OK.
  6. Quit Registry Editor. NOTE: After you remove the Upperfilters value and the Lowerfilters value, if you notice lost functionality in a particular program, such as CD recording software, you may need to reinstall that software. If the problem recurs, consult with the software vendor for assistance.
  7. Restart your computer.
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