Solved: CD ROM system file is missing or corrupt

My CD ROM/DVD player recently stopped working on my Omitech computer. From My Computer - I can't see the drive anymore.
In the device manager - it has a yellow exclamation mark on it.
I tried updating the driver but the message was that the software was already the best match. I tried uninstalling and reinstalling but it says a file is missing or corrupt. I bought a new external CD ROM - but have the exact same problem with it. I went to Run and put in sfc /scannow and there were problems that maybe could be fixed - if only it could read the XP CD - then it could fix the CD ROM. But it can't read the CD because of the problem with the CD ROM. (a whole in my bucket story.)

So - how can I fix the problem if it wants a CD to fix the problem but the CD ROM is not working to read the CD???

 

Hi,

Try this first:

Copy the code below. Open Notepad and paste it in. Save the result in a suitable location as drives.reg - making sure that the default .txt extension doesn't appear in the file name (Save as type = All Files).
Double-click on the saved .reg file to merge the contents.
Restart.

Code:

Windows Registry Editor Version 5.00

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

[-HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Cdr4_2K]

[-HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Cdralw2k]

[-HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Cdudf]

[-HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\UdfReadr]

 

Thank you! You did for me in 30 minutes what my work IT support couldn't do in 2 weeks.

 

Great! Give 'em the bill for the extra drive you had to buy