After you remove an application that had installed filter drivers, access to your CD-ROM from My Computer is unavailable. Additionally, Device Manager may display any or all of the following messages:

The device is not working properly because Windows cannot load the drivers required for this device (Code 31).

A driver for this device was not required, and has been disabled (Code 32 or Code 31).

Your registry might be corrupted. (Code 19).

Windows successfully loaded the device driver for this hardware but cannot find the hardware device. (Code 41)

To workaround this behavior:

1. Save the filter driver registry entries, just in case, by opening a CMD.exe prompt and typing

regedit /a SaveFilters.reg HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\\{4D36E965-E325-11CE-BFC1-08002BE10318\}2. Copy / Paste the following to a NoFilter.reg file:

REGEDIT4

\[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\\{4D36E965-E325-11CE-BFC1-08002BE10318\}\]
"UpperFilters"=-
"LowerFilters"=-

3. Merge the NoFilter.reg file with your registry or run regedit /s NoFilter.reg.

4. Shutdown and restart your computer.

NOTE: If you notice loss of functionality in any remaining CD-ROM software, you may need to uninstall and re-install it.

NOTE: You may need to uninstall Windows Media Player and install the latest Windows Media Player from http://www.microsoft.com/windows/windowsmedia/players.aspx.