Help CD Rom & CD R/W not working!!!!! 2

[clarkee4]

I just recently installed W2K on my Compaq Presario 5BW220 and the CD-Rom was working fine until I re-intstalled my CD R/W, and then they both dissapeared. When I check the device manager i get the yellow exclamation mark by both of them and the following message when I click on either....This device is not working properly because Windows cannot load the drivers required for this device. (Code 31). I would like to just reinstall W2K but I cant boot from the CD because it doesn't recognize them. I tried using the 4 boot disks that I made from my W2K cd, but when I used them I got this error during disk #2 - usbhub.sys is corrupt and it wouldn't let me go any further. I need help. Thanks.

Will

 

[tlcscousin]

This is an article minus the jpg's that covers the disappearing cd-roms in W2K.

The fix is in for a disappearing CD-ROM
Jul 9, 2001
Mike Walton
Author's Bio | E-Mail
© 2001 TechRepublic, Inc.



Last fall, when TechRepublic support technician Ted Laun was preparing computers for our migration from Windows NT 4.0 to Windows 2000 Professional, he discovered a weird phenomenon.

The quirk happened after Win2K Pro was installed on a machine. If he hot-swapped a USB CD-ROM before its driver was installed on a machine with only one USB port—or on a machine where the second USB port was already in use—both the internal and USB CD-ROMs would not be available when the computer was restarted.

In this article, I’ll take a closer look at the problem and explain Laun’s solution so that when this happens to you, you’ll be fully prepared.

Can’t you hot-swap these things?
Laun first became aware of this problem when a developer asked him about it several months before TechRepublic began its migration.

The developer had a USB Zip drive connected to his HP Kayak XM600 at home, and when he plugged in a USB CD-ROM to his machine, installed the driver, and rebooted his computer, neither his new CD-ROM or the internal CD-ROM were available.

Laun didn’t know what to tell him, except to say that he would try to keep an eye out for a fix. It wouldn’t be long before Laun was forced to find a solution.

The same problem occurred early in TechRepublic’s migration to Win2K Pro. This time the system was a Compaq P866 that had a USB scanner plugged into its second port.

This time, the employee encountering the problem had hot-plugged the USB drive in, installed the driver, and restarted the machine. He double-clicked My Computer and sure enough, there were no CD-ROM drives at D: or E:.

When Laun right-clicked My Computer, clicked on Manage, and then clicked on Device Manager, he saw a caution mark under Universal Serial Bus controllers. See Figure A.


Figure A

Ted Laun also saw the computer’s internal drive marked with a caution sign.



When Laun right-clicked the caution mark for the CD-ROM and then clicked on Properties, he saw that the computer could not find the driver for either drive. See Figure B.

Note: In our tests, we could only lose the external drive. Laun suspects that the problem may have been at least partially fixed by Service Pack 1.


Figure B

In the device status box, Laun found an error Code 31.



Looking for a solution in all the right places
Laun did what you probably would have done—he uninstalled the drivers and reinstalled them. But that didn’t fix the problem. Both devices failed to show up under My Computer.

Laun searched Microsoft’s TechNet and came up empty handed. Then he went out into the Usenet user groups and found that someone else had the same problem.

Apparently, all he had to do was to Regedit into the Registry and kill out two keys. They are located at:
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}

Once he was there, Laun deleted the UpperFilters and LowerFilters. When he rebooted the computer, the appropriate information appeared. See Figure C.


Figure C

This is what the keys should look like for an HP CD-ROM.



Now it’s an easy fix
In late 2000, Laun was well into the migration to Win2K. For some reason, he had to plug a USB CD-ROM into a Compaq Armada M300, which only has one USB port.

Again, both CD-ROM drives were unavailable on restart, and the computer indicated that the drivers were missing. Once again, the fix was deleting the two keys from the Registry, and both drives reappeared under My Computer.

 

[clarkee4]

shovel204 - Thanks a million, you are the heat. I am a new suscriber to this website but now I am a firm believer in it. Sure enough your tip worked like a charm. Thanks again..
clarkee4

 

[Guest_imported]

Had the exact same problem after I plugged in a Cannon Scanner. performed the recommended Regedt32, and problem seems to have been resolved.

 

[Guest_imported]

I got to tell you I tried and tried, and it still doens't fix my problem. This actually started after I temporarily disconnected my ide cd rom drives (yes the 'puter was off)
and replaced wiith a hdd for data transfer, I then plugged everything back in , and rebooted. Everything was fine until I uninstalled ezcd cdreator 5.0. After that reboot, I got a blue screen error on bootup, and went through a miriad of recovery methods until I could once again get back to a normal and stable computer, fully patched. However I still cannot see the rom drives in "my computer" and they have an exclamation and could not load drivers error in the device manager, along with the code 31. Playing with the registry did not help, and I am now at a loss ( any other ideas?)

--Chris