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Question:
Neither my CD Rom nor DVD-Rom drives show up under 'My Computer' in Windows
Explorer. Attempts to run software that needs to access either drive results in
a message that says 'No CD-Rom drive detected'. In the Control
Panel/System/Hardware/Device Manager the CD and DVD drives have yellow icons
with exclamation points next to them. Clicking on 'Properties' brings up this
message: 'Windows cannot initialize the device driver for this hardware. (Code
37)'.
I uninstalled and reinstalled the drivers twice. I went into set-up and switched
from auto detect to a manual setting. I even bought a new combination CD/DVD rom
drive, but the computer wouldn't detect it. In fact, it didn't even seem to be
getting power. However, when I reinstalled the old drives, they were detected
immediately and had power.
Answer:
The fix involves editing the Windows Registry.
WARNING: THE NEXT STEPS INVOLVE EDITING YOUR SYSTEM REGISTRY. WE STRONGLY RECOMMEND YOU EXPORT YOUR REGISTRY BEFORE ATTEMPTING ANY EDITING.
EDITING YOUR REGISTRY INCORRECTLY CAN CAUSE IRREPARABLE SYSTEM DAMAGE. WE
RECOMMEND THAT IF YOU DO NOT FEEL
COMFORTABLE EDITING YOUR REGISTRY THAT YOU SKIP THE FOLLOWING STEPS.
Open the Registry Editor: - Click on Start then select Run - Type in: regedit
and click OK.
<>Backup your registry by:
1. Highlight My Computer by clicking on it once.
2. At the top of the page you should see File, click on this and then select
Export Registry File.
3. The following screen will allow you to select where you would like to save
this backup and what file name you would like to save it as.
Please note at the bottom of the screen where it says export range All; this
should be selected to ensure your entire registry is backed up completely.
5. Give the File a name and click on the SAVE button (this will bring you back
to the registry editor)
<>Remove the UpperFilters and LowerFilters values by:
1. Expand the HKEY_LOCAL_MACHINE key (looks like a folder) by double clicking it
(or clicking the + next to it.) Expand the SYSTEM Key
2. Expand the CurrentControlSet Key
3. Expand the Control Key
4. Expand the Class Key
5. Please look for a key containing the following string of letter and numbers:
{4D36E965-E325-11CE-BFC1-08002BE10318}
6. Highlight this key by left clicking once on it.
7. On the right hand side you are looking for UpperFilters and LowerFilters,
once you find these please delete them - Highlight them (clicking on them once)
and then delete them by right-clicking on them and choosing delete (or pressing
Delete on your keyboard.)
8. Close the Registry Editor, click on File and then click on Exit
9. Restart your computer. Your CD/DVD Drives should be back and functioning.
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