Tuesday, August 16, 2011

How to fix the DVD / CD-ROM (Code 39 errors) in Windows XP or Vista

DVD/CD-ROM drives (Code 39 error)
At present, the player's devices are CD-ROM, DVD-ROM. The faults are caused by hardware and software kinds. Considering the mechanical is too difficult for the inexperienced, so we here just focus on software, dealing with drives' error (Code 39 error).

After loading the Windows, the DVD/CD-ROM drives work properly, but we can not see the drives in "My Computer" (System can not recognize the drives.). When try to run the drives, it shows up a notice "Windows cannot load the device driver for this hardware. The driver may be corrupted or missing. (Code39)." Before solving this error, check the drives connection correctly, then follow the steps below:
Delete Device Manager. Most people will firstly think of Windows "Find New Hardware" when drives are missing, but it does not always work out. To fix the problem: open "My Computer"→ "Control Panel" →"System"→"Device Manager"→ "HDC(Hard Disk Controller) ", then click "Delete". Follow the note to reboot computer. After rebooting, the computer will find the Primary IDE Controller and Secondary IDE Controller again and install the drivers. Restart the computer again while the installation is completed. In this, we can get back our CD/DVD-ROM Drives.

The other way is by editing the registry to return the missing CD/DVD-ROM drives (Code 39 error.). Obviously, it is too risky to edit the registry if you are not familiar with it. To fix the error from the registry, carry out the following steps:
Exit and close all applications currently running on your PC.
Step1. Click Start > Run and type in Regedit, press Enter.
Step2. Look for the following registry key:
HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlClass {4D36E965-E325-11CE-BFC1-08002BE10318}
Delete any of the following registry entries under this key directory:
LowerFilters
LowerFilters.bak
UpperFilters
UpperFilters.bak
Step3. Reboot your PC and open My Computer to check that the CD-ROM drive is visible.
Also, have a look at the Device Manager to see if the yellow exclamation mark and the error code 39 are gone.

System errors are not welcome guests that bring up unhappy computing experience. Registry Easy (www.registryeasy.com) is a professional troubleshooting system maintenance tool that can help you to solve this error and many more.


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