Lost DVD drive

Question

When I install iTunes for Windows on my hp4500 it puts in a registry entry that disables the DVD driver. When I remove this registry entry (as recommended by HP) iTunes complains that an essential registry entry is missing. Is there a workaround?

Answer 1

The iTunes diag is as follows;
Microsoft Windows 7 Ultimate Edition (Build 7600)
HP-Pavilion GN559AA-ABA a6220n
iTunes 10.6.0.40
QuickTime 7.7.1
FairPlay 1.14.34
Apple Application Support 2.1.7
iPod Updater Library 10.0d2
CD Driver 2.2.0.1
CD Driver DLL 2.1.1.1
Apple Mobile Device 5.1.1.4
Apple Mobile Device Driver not found.
Bonjour 3.0.0.10 (333.10)
Gracenote SDK 1.9.5.502
Gracenote MusicID 1.9.5.115
Gracenote Submit 1.9.5.143
Gracenote DSP 1.9.5.45
iTunes Serial Number 002BA7BC02D08DD0
Current user is not an administrator.
The current local date and time is 2012-03-12 13:02:08.
iTunes is not running in safe mode.
WebKit accelerated compositing is enabled.
HDCP is not supported.
Core Media is not supported. (16005)
Video Display Information
Intel Corporation, Intel(R) G33/G31 Express Chipset Family
**** External Plug-ins Information ****
No external plug-ins installed.
The driver AFS.SYS is installed on the system.
iPodService 10.6.0.40 is currently running.
iTunesHelper 10.6.0.40 is currently running.
Apple Mobile Device service 3.3.0.0 is currently running.
**** CD/DVD Drive Tests ****
LowerFilters: PxHelp20 (2.0.0.0),
No drivers in UpperFilters.
Failed loading CD / DVD drives, error -43. Try doing a repair install on iTunes from the “Add or Remove Programs” control panel.
HP's recommendation for losing the cd drive is;
Step 4: Clear the upper and lower registry filters
Clear the registry filters for Device Manager error codes 10 , 19 , 31 , 32 , 39 or 41 using the following steps:
   1.
      Click the following Microsoft Fix it Solution to clean the registry filters automatically:
      If you cannot use the Microsoft Fix it Solution, continue using these steps to clear the upper and lower registry filters manually.
   2.
      Unplug all non-essential external plug and play devices, especially cameras.
   3.
      Click Start , and type "regedit " into the Start Search field.
      The registry editor window appears.
   4.
      Select Computer in the main window.
   5.
      Click File , Export , type a filename that is easy for you to remember, and click Save .
      A copy of the registry has saved for back-up purposes to the Documents folder. If problems occur after using these steps, browse to the file and double-click it to restore the registry.
   6.
      Click the plus sign (+ ) next to the following items in the list:
          * HKEY_LOCAL_MACHINE
          * SYSTEM
          * CurrentControlSet
          * Control
          * Class
   7.
      Select 4D36E965-E325-11CE-BFC1-08002BE10318 . Make sure you have selected this exact key name.
   8.
      Select the LowerFilters value and press the Delete key. Confirm the deletion by clicking Yes .
      Figure 10: Registry Editor: LowerFilters key
   9.
      If an UpperFilters value is also listed, select UpperFilters in the right window and press the Delete key.
      Confirm the deletion by clicking Yes .
  10.
      Delete all other UpperFilter and LowerFilter values within the 4D36E965-E325-11CE-BFC1-08002BE10318 key if they exist.
  11.
      Close the registry editor and restart the computer. The disc drive should now be recognized by Windows. You may need to uninstall your disc recording software, restart the computer, reinstall the CD/DVD writing software, and then restart the computer again if the software no longer recognizes the drive (see next step).
Reinstalling or doing a delete and install of itunes does not work. This problem has been repeated in XP, Vista and 7. If you can reccommend a solution it would be appreciated.