I get the following error message when trying to use the dvd/cd rom:

"Windows cannot start this hardware device because its configuration information (in the registry) is incomplete or damaged. (Code 19)"

I have uninstalled and ran the search driver but still get the same message, how do I fix this?

I have a Lite-On dvd drive (LH-20A1L).

This issue might have caused due to one of the following situations:

Upgraded the Windows operating system.
Installed or uninstalled CD or DVD recording programs.
Uninstalled Microsoft Digital Image.

I would suggest you to try the steps provided in the following Microsoft Support article and check if it works for you.

Your CD or DVD drive is not recognized by Windows or other programs:

http://support.microsoft.com/kb/314060/en-us

Important: Refer to the steps in this section carefully. Serious problems might occur if you modify the registry incorrectly. Before you modify it, back up the registry for restoration (http://support.microsoft.com/kb/322756/ ) in case problems occur.