Unable to install itunes Win 7, 64 bit. Error: " Could not open key: UNKNOWN\Components\DA42BC89BF25F5BD0AF19C3B9B1A1EE8\C0B7E33AC99B9CE47B20A823B86 1A19F. Verify that you have sufficient access to that key. or contact your support personnel.

Question

Hi,
I'm not able to install itunes in my Win 7 , 64 bit. getting the below mentioned error.. any help would be greatly appriecated.
" Could not open key: UNKNOWN\Components\DA42BC89BF25F5BD0AF19C3B9B1A1EE8\C0B7E33AC99B9CE47B20A823B86 1A19F. Verify that you have sufficient access to that key. or contact your support personnel."

Answer 1

NCPlater to all haveing the error:  ***I HAVE THE ANSWER***
iTunes
Could not open key:
UNKNOWN\Components\DA42BC83BF25F5BDOAF18C3B9B1A1EE8\3e43b73803c7c394f8a6b 2f0402e19c2. Verify that you have
sufficient access to that key. or contact your support personnel.
After following instructions for three different solutions that did NOT work; I found the solution that did work
on the support site for Syamntec.
Readers - Please, you must be VERY familiar with pc jargon and windows vernacular to accomplish the reset
of ALL the permissions in your registry.
Follow the ditrections below and pay attention to the notes for those running 64bit Win7.
Step one, back up the registry.
Step two, go to the MS KB: http://www.microsoft.com/downloads/details.aspx?FamilyID=e8ba3e56-d8fe-4a91-93cf -ed6985e3927b&displaylang=en and download the file that installs subinacl. It is an MSI file, and will do a quick install of a few Microsoft files.  Hint: Look in the folder listed below, "subinacle.exe" may already be there.
Step three, create a batch file (subinacle.bat) with the following commands:  (Use Notepad - copy & paste, not the red stuff)
cd /d "Program Files\Windows Resource Kits\Tools" (only for 32bit/x86 machines)
subinacl /subkeyreg HKEY_LOCAL_MACHINE /grant=administrators=f /grant=system=f
subinacl /subkeyreg HKEY_CURRENT_USER /grant=administrators=f /grant=system=f
subinacl /subkeyreg HKEY_CLASSES_ROOT /grant=administrators=f /grant=system=f
subinacl /subdirectories %SystemDrive% /grant=administrators=f /grant=system=f
subinacl /subdirectories %windir%\*.* /grant=administrators=f /grant=system=f
secedit /configure /cfg %windir%\inf\defltbase.inf /db defltbase.sdb /verbose
For 64bit machines substitute for first line of bat file:
                    cd /d "c:\program files (x86)\windows resource kits\tools"
Step four, run the batch file. Let it run until the Command Prompt screen closes, may take 30 minutes or more.
Step five, reboot the machine and run the install again.
Ladies and Gentlemen; this worked for me and allowed immediate installation of two application packages I had been trying for three months!  (Including ITunes 10.5)