ITunes 10- "could not open key"

A while ago, iTunes wanted to upgrade on my computer, so I tried this and it didn't work for some reason. And I don't remember what happened exactly, because it was so long ago and I just kinda forgot about it. Until one day I realized that I don't have iTunes on my computer anymore. So I went to the apple website to download iTunes 10 and it won't download. I've tried redoing it so many times! Uninstalling all apple programs (quicktime, bonjour, mobile me, apple app support etc) and it still won't install! The error message that pops up says:
Could not open key:
UNKNOWN\Components\DA42BC89BF25F5BD0AF18C3B9B1A1EE8\b2509927a207264182f8181add55 5d0. Verify that you have sufficient access to that key, or contact your support personnel.
then i click OK
then it installs "successfully" but really, when iTunes starts up then i get this message: Apple Application Support was not found. Apple Application support is required to run iTunes Helper. Please uninstall iTunes, then install iTunes again. Error 2.
GAH! this has consumed so much of my time I'm so angry!!!!!!!!
then i click okay.

You could try the method in this post, but be careful as it involves editing the registry, and that can cause trouble if you don't know what you are doing.
http://discussions.apple.com/thread.jspa?threadID=2475687&tstart=30

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TS1462 Installing iTunes problem "Could not open key..."

Hey,
I hope somoene can help me with my problem. I receive the following message when it is trying to install iTunes: "Could not open key: UNKWON\Components\DA42BC89BF25F5BD0AF18C3B9B1A1EE8\710D45C7BB12EA347964337EA84F 4A52. Verify that you have sufficient access to key or contact your support personnel"

but once i reached point 7 I noticed that this key is missing and I can't continue.
Doublechecking ... CurrentVersion is missing? (The one shown under Windows in the following screenshot?)

ITunes + QuickTime Could not open key???

So, I'm trying to install iTunes onto my computer and I'm continually getting this messeage right as it finishes...
Could not open key:
HKEYLOCALMACHINE\Software\Classes\QuickTimePlayerLib.QuickTimePlayerApp\CLSID. Verify that you have sufficient access yo that key, or contact your support personnel.
QuickTime is giving me serious trouble... Can anybody tell me what this message means?
Windows XP Pro

I am having the EXACT same problem! This is what I'm getting.
Could Not Open Key: HKEYLOCALMACHINE\Software\Classes\QuicktimePlayerLib.QuickTimePlayerApp\CLSID. Verify that you have sufficient access to that key, or contact your support personnel.
I uninstalled Quick Time and now I have no iTunes. This is trouble.

HT1925 My ipod is not showing up when I have itunes up. I was told to remove itunes and reinstall however. I receive a message with unable to uninstall the Itunes. It states "could not open key HKEY_LOCAL_MACHINE\SOFTWARE\CLASSES\INTERFACE\(915DA835-02FE-

can someone please advise on what I should do? unable to uninstall the Itunes. It states "could not open key HKEY_LOCAL_MACHINE\SOFTWARE\CLASSES\INTERFACE\(915DA835-02FE-4953-92FA-624BDF5D 85AB) VEIFY THAT YOU HAVE SUFFICIENT ACCESS TO THAT KEY, OR CONTACT YOUR SUPPORT PERSONNEL, Which i did . I contacted the apple support and they could not help. has anyone gotten this error? Did some research some results show that this has occurred during updates on the itunes but has not seen how to successfully uninstall without getting this error. I attempted to use the control panel and uninstall but it provides me with the same error all the time. I NEED SOME Answers on this issue. Can you please help?!

Perhaps try the fixit from the following Microsoft web page. (Try the "problems uninstalling" option.)
Fix problems with programs that can't be installed or uninstalled

ITunes will not install, I get an error message: Could not open key:HKEY_LOCAL_MACHINE_software_classes_CLSID

I tried to reinstall iTunes 10.5 on an older PC using Windows XP. iTunes will not install. Tthis is the full error message. Could not open key: HKEY_LOCAL_MACHINE\software\classes\CLSID\{063D34A4-BF84-488D-B699-E8CA04DDE}
Please Help

I was able to solve this problem using the utility explained in this post:
http://blogs.msdn.com/astebner/archive/2006/09/04/739820.aspx
Thanks!
Dell Windows XP

HELP ME!!!! itunes wont open, error says could not open key......

I attempted to update itunes to the newest upgrade, and the upgrade was unsucceful, and now this error comes up everytime i try to open itunes (it wont open at all). the error says
Could not open key:
HKEYLOCALMACHINE\Software\Classes\.wav\OpenWithList\iTunes.exe.
Verify that you have sufficent access to that key, or contact your support personnel.
This makes no sense since this is on my home PC

hmmm. okay, if you're currently just getting the "itunes has encountered an error ..." let's try the following technique.
preliminaries
download and save a fresh copy of the itunes 6.0.1.3 installer to your hard drive. (eventually we're going to run the install from there rather than online.)
iTunes 6.0.1.3 Installer
switch off any antivirus and antispyware applications prior to any uninstalls, installs or repair installs.
uninstall
use the complete uninstall instructions given in the following document to remove your existing itunes and quicktime:
Troubleshooting iTunes, iPod Software, and QuickTime installation on Windows
... and if you run into problems on the uninstall, try using the Installer Cleanup utility:
Description of the Windows Installer CleanUp Utility
reboot after uninstalling.
reinstall
remember to switch off your antivirus and antispyware.
reinstall itunes using the 6.0.1.3 installer you downloaded previously.
if you get the "itunes has encountered a problem ..." error message again after that install, first check to see if your Quicktime will launch. if you get an error message when you try to launch quicktime, try using the following technique:
iTunes 6 for Windows unexpectedly quits when opened
keep us posted on your progress.
love, b

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.

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."

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)

Win 8.1 Pro, iTunes install fails with "could not open key"

Have tried complete uninstall as required by "Remove and reinstall" Did not work.

Okay ... although you've got a Windows 8 (rather than a 7 or a Vista), let's try the following user tip:
"Could not open key: UNKNOWN\Components\[LongStringOfLettersAndNumbers]\[LongStringOfLettersAndNumbe rs]" error messages when installing iTunes for Windows

ITunes install on Win 8.1 Pro x64; Could not open key

iTune install stalls with message "Could not open key .......string of numbers ....."

iTune install stalls with message "Could not open key .......string of numbers ....."

Error message: "Could not open key..." trying to install iTunes 7.6.1.9

I'm trying to install iTunes and keep receiving error msg: "Could not open key: HKEYLOCALMACHINES\Software\Classes\.cdda\OpenWithProgIds. Verify that you have sufficient access to that key, or contact your support personnel."
I have tried to un-install and re-install to no avail. Please help! I have i-Tune gift cards that are rendendered worthless at this point.

Are you logged on as a Windows administrator?

ITunes 10.6 error 'Could not open key...."

Hi there, so i was installing the new version of iTunes (10.6) and then in the middle of the process a box came up saying "Could not open key:UNKNOWN\Components\ ~~~~a lot of numbers and letters~~~~~\ ~~~~~~a lot of numbers and letters~~~~.Verify that you have sufficient acess to that key, or contact your support personnel.
Right now i have 3 different keys that show up during the installation, each in a different box.
I've tried to change in the regedit the permission of those keys, but it seems like didn't work.
So if anyone can help me please, i'll be very greatful.

"Could not open key:UNKNOWN\Components\ ~~~~a lot of numbers and letters~~~~~\ ~~~~~~a lot of numbers and letters~~~~.Verify that you have sufficient acess to that key, or contact your support personnel.
These ones are tricky. But the following instructions are worth a try.
First do a complete uninstall of iTunes and related components (but don't reinstall just yet), as per the following document:
Removing and reinstalling iTunes, QuickTime, and other software components for Windows Vista or Windows 7
a. Launch regedit (Start >> Search Programs and Files >> type Regedit and open the regedit that comes up.)
b. Access the following Location: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData \S-1-5-18\Components
c. Perform the following actions
i. Right Click on Components Folder
ii. Select Permissions
iii. Select Full Control and Read Permissions options
iv. Select Advanced Button
v. Select Owner Tab
vi. Select to Change Owner to the Administrators
vii. Check the option “Replace owner on subcontainers and objects”
viii. Select OK when prompted that it may not change all.
ix. Select Apply
x. Select Apply again
xi. Exit the Registry Editor
Now try reinstalling iTunes again. Does it go in properly this time?

ITunes 10.6 Error-Could not open key UNKOWN/Components...

Hi guys, I've been trying to install iTunes 10.6 on Windows 7 64bit, and keep getting this error.."Could not open key: UNKNOWN/Components/EC902C4A3C46DD11393FC916558D5939/21DFF8FCB206D224FAD115B114E 16723. Verify that you have sufficient access to that key, or contact your support personell." I really don't know what to do, I've tried a lot such as making sure it's uninstalled, using Windows Installer Clean up to remove Bounjour, Quicktime and iTunes. I've also tried running the installer in Administrator. I would really appreciate it if somebody could help me! Thanks!

Hmmmm.
Just in case, let's try the Fixit from the following document:
Fix problems with programs that can't be installed or uninstalled
(One of the things it does is check on installation patch registration ... which is associated with a related set of registry keys. I'm not sure how they're implementing the patch registration tool in the automated Fixit, but ... fingers crossed ... it might also be of some help with the \Components\ keys we're having grief with here.)

Cannot install QT, iTunes, or safari "could not open key..."

whenever i try to install iTunes, QT, or safari it always says "could not open key UNKNOWN\components\.... i have used the registry editor and done the things listed in several different posts on the same topic. please help

Try the following user tip:
"Could not open key: UNKNOWN\Components\[LongStringOfLettersAndNumbers]\[LongStringOfLettersAndNumbe rs]" error messages when installing iTunes for Windows

Please Please help me. I have been trying to install Itunes 11 for 3 months. I deleted my old version and can not for the life of me get Itunes installed . I have Windows 7 Home. The message is " Could not open key: UNKNOWN\Components\DA42BC89BF25F5BDOAF1

Please Please help me. I have been trying to install Itunes 11 for 3 months. I deleted my old version and can not for the life of me get Itunes installed . I have Windows 7 Home. The message is " Could not open key: UNKNOWN\Components\DA42BC89BF25F5BDOAF1

Try the following user tip:
"Could not open key: UNKNOWN\Components\[LongStringOfLettersAndNumbers]\[LongStringOfLettersAndNumbe rs]" error messages when installing iTunes for Windows

Tried to install ios5. Would not install. Also lost earlier version of itunes. Keep getting message Could not open key

Tried to install the newest version and lost all itunes on this computer. Followed instructions about removing and reinstalling iTunes, Quicktime, etc. Now I get message "Could not open key: UNKNOWN\Components|" and several letters/numbers afterward.

The first thing would be to get the proper version of Safari for your version of OS X (Tiger).
Go here to get Safari: http://www.apple.com/safari/download/
Be sure to choose the bottom choice:
You will also need the latest security update for Tiger.

ITunes 10- "could not open key"

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