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Cd/DVD drive not detected

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5 replies

by tintoman

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My client's pc has a brand new CD DVD drive fitted, it shows in the BIOS when booting the machine, it is also in the list of devices in hardware manager (win XP) however it has the usual excaimation mark next to it, it does not appear in the my computer window, it has no drive letter and it does not work....any ideas anyone?

5 replies

by azraelissime

Hi,

If it's on an IDE cable, be sure that the jumpers are set correctly. Master and Slave if 2 drives are attached on the same IDE cable.

If it's on an UDMA cable, the jumper must be set to Cable Select.

You ca also try to uninstall the drive in the Device Manager and then send a new scan for hardware changes. It will reinstall the drive.

If it doesn't work, try to boot with a Win98 boot floppy disk and try to access a cd-rom in dos. If it's not working, I suggest to try the drive in an other computer to be sure it's correcly working.

by tintoman

Thanks but to give you more info the original DVD drive "disappeared" from the system some time ago, so I fitted a new one, originally the DVD drive was on the same cable as the HDD but now I have connected the new one directly to the IDE 1 connector on the Motherboard, this is detected in the BIOS on boot up so I tried to boot the machine from the Cd/DVD drive with a windows installation disc, but it wasn't seen and just continued to boot from the HDD. I am convinced this is a registry issue but I dont know where to look in the registry or what the values should be when I find it!

by azraelissime

You said: "I tried to boot the machine from the Cd/DVD drive with a windows installation disc, but it wasn't seen and just continued to boot from the HDD"
--> This may just be the startup order in the BIOS. If the first device si your HDD, it won't start via cd-rom. It must be set as the first drive to boot on.

If you think it's a registery problem, you can try to refresh the CD and DVD drivers list in the Windows registry.
But before modifying the registry, be sure to make a backup copy of it.

1. Close all applications.

2. Choose Start > Run.

3. Type regedit in the Open text box and click OK.

4. In the Registry Editor dialog box, navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class and select the {4D36E965-E325-11CE-BFC1-08002BE10318} key, which appears as a folder.

5. Select File > Export (Windows XP) or Registry > Export Registry File (Windows 2000).

6. In the Export Registry File dialog box, select Selected Branch under Export Range, name the file (for example, CDDVDkey.reg), and click Save to save the file to the Desktop.

7. In the right panel of the Registry Editor, select the LowerFilters line, and then choose Edit > Delete. Click Yes in the Confirm Key Delete dialog box.

8. Select the UpperFilters line, and then choose Edit > Delete. Click Yes in the Confirm Key Delete dialog box.

9. Close the Registry Editor.

10. Restart Windows.

After you refresh the driver list in the Windows registry, you may need to reinstall any other CD or DVD burning applications on your computer. If you restart Windows after this procedure and other CD or DVD burning applications do not recognize the CD or DVD drive, then reinstall those applications.

If you need to restore the exported CD and DVD drivers list:

1. Double-click the registry key you exported in step 5.

2. Close the Registry Editor.

3. Restart Windows.

by tintoman

Thanks for the advice I will try it when I next see the machine, it will be a big thumbs up for you if it works

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