My DVD ROM is detected in the BIOS, but it is not available in windows.
What can I do?
Reboot your system, login, and immediately take a look at Control Panel -> Administrative Tools -> Event Viewer - see if something in the Application or System logs gives any clues.
Try reinstalling any burning software you have, such as Nero or Roxio. If you installed any other software with your drive, try reinstalling that as well.
A copy-protection (or other) filter driver may be been installed when you inserted and let autoplay a disc, and that driver may be malfunctioning. You may snag a copy of Sysinternals' Autoruns and look in the drivers section for any optical drive related drivers, and try disabling them.
If you have a Windows system restore point available at a point you know the drive worked properly, that may be an easy fix.
There's also a slight possibility that the drive may be actually recognized by Windows, but merely not assigned a drive letter. Control Panel -> Administrative Tools -> Disk Management (or Winkey + R -> diskmgmt.msc to check that).
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I was fixing a computer the other day and ran across the following error in Device Manager on the CD-ROM drive.
"Windows cannot load the device driver for this hardware. The driver may be corrupted or missing. (Code 39)"
Because of this error, the drive did not show up in My Computer and the customer was unable to burn CDs or read any CDs.
I uninstalled the drive from Device Manager, rebooted the computer, and the problem remained, so obviously it appeared to be a registry issue that I would have to solve. If you are receiving this Code 39 error and your CD or DVD drive is missing and has a yellow exclamation mark in Device Manager, I hope this information is useful.
To solve this Code 39 error, follow these instructions:
NOTE: After removing these registry keys and rebooting, it may be necessary to reinstall any CD or DVD recording applications.
1) Close all open programs
2) Click on Start, Run, and type REGEDIT and press Enter
3) Click on the plus signs (+) next to the following folders
4) This folder is the DVD/CD-ROM Drive Class Description in the registry. Look for any of the following names in the right hand column.
5) If any of the above keys shown in step 4 are listed, right-click on them and choose Delete
6) After deleting the keys, close the Registry Editor
7) Reboot your computer
8) Open My Computer and check to see if your CD or DVD drives have returned. You may also want to open Device Manager and verify that the yellow exclamation and error code on the CD or DVD drive is gone