When I try to reinstall iTunes, I see the error "Could not open key: UNKNOWN\Components\..."

Hello, everyone.
About a month ago, iTunes was working fine (save for the fact I couldn't update it. No matter if I tried automatically or manually, it would tell me it couldn't be updated or that the update failed.) I don't exactly remember if I was trying to update when iTunes stopped working. All I remember is one day I went to open it and it kept giving me an error. So, I unistalled it. Then, I removed the files from the registry and other places with my Windows Clean Uninstaller--just to make sure it was completely off. When I tried to re-install, it would stop in the middle of installing and give me this:
It would rollback the changes and then keep installing. However, when I tried to open it after installation, I'd get this:
I've tried uninstalling and re-installing a few times. I've also tried adjusting my administrative settings (This would be the second program that has claimed I don't have sufficient priveledges, so I assmued it was me). However, no matter who I gave administrative priveledges too, the same thing reoccured. A
I've tried finding the key to make sure it existed, but I couldn't find it on my computer (At least, not through the C drive or anything. Do I have to use the command prompt or something?).
If anyone's got any advice, give a shout. I'm really getting sick of my programs acting up.

Found a solution!
Follow the extended version of these directions here:
https://discussions.apple.com/docs/DOC-3581
Worked like a charm!

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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)

ITunes 10.7 installation error: "Could Not Open Key," etc. & Privileges error

When attempting to download iTunes 10.7.0.021 (latest version for iOS 6 compatibility with my new iPhone5) I get the following error:
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This error pops up in the middle of my iTunes installation; After hitting okay, the installation proceeds and then another error message reading:
"Apple Mobile Devices Failed To Start. Please make sure you have sufficient privleges... etc."
I don't know what to do about both of these errors, so if you find a solution please e-mail me: [email protected]

try with this one
uninstall all the apple application S/w like Quicktime, Bonjour,
apple Device Support, Apple Auto update, Itunes etc from your pc,
Reboot it
Now download a fresh itunes from apple and try installing
Reboot it
If you are having Problem in uninstalling any of the apple application
try 'revo uninstaller' and uninstall all the apple applications
mentioned above

"could not open key, unknown\components" error while reinstalling

I'm getting a "could not open key, unknown\components" error while reinstalling latest Itunes. Tried several time with same results

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

Hi i can not install itune. There are the error show " Could not open key: Unknown\Components\32A7D634EB632D11CABB00087CCFBB48\DAEC106DF4E2BBB458CC2CA9C46 E3A0C.

Hi,
i can not install itune. There are the error show
" Could not open key: Unknown\Components\32A7D634EB632D11CABB00087CCFBB48\DAEC106DF4E2BBB458CC2CA9C46 E3A0C. Verify that you have sufficient access to that key. or contact your support personal.
I have tried some soution from the similar case to uninstall itune and also related components already but finally the probelm still occured.
Please you help to suggest me what can i do? I need to restore my back up data to the new iphone as the previous one got stolen.
BR,
Sirorath A.

Try the following user tip:
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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.)

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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

I am trying to download iTunes on to my laptap but I keep getting a "Could not open key: UNKNOWN\Components\ with a bunch of numbers and letters following. I have uninstalled all the iTunes programs. I changed the Regedit but I still get the error?

I am trying to download iTunes to my laptop but I keep getting this "Could not open key: UNKNOWN\Components\ followed by a bunch of numbers and letters. I have unistalled iTunes and all the other apple componants. I also used followed this http://discussions.apple.com/docs/DOC-3581. But I am still getting the same "Could not open key:" error and it tells me that iTunes could not download.

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Fix problems with programs that can't be installed or uninstalled

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In answering this, B Noir had it almost correct. What he missed was that in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData \S-1-5-18\Components one must also make sure that when right clicking on components/permissions, that the active user is allowed Full Control.

Many thanks for the heads up, Mac. In recent times, I've also seen that reported during a troubleshoot of a Safari variation of the issue:
Re: Trouble installing Safari Update On Windows
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Doublechecking something ... did your key (in the error message) have the UNKNOWN\Components\[LongStringOfLettersAndNumbers]\[LongStringOfLettersAndNumbe rs] structure? Or was it just a UNKNOWN\Components\[LongStringOfLettersAndNumbers] (no slash and no second alphanumeric string), like rona's key?

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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.
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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?

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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/
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Could not open Key: UNKNOWN\components\DA42BC89BF25F5BD0AF18C3B9B1A1EE8\7E577B2224C65CF4E801A9E5237 5DB49
I have no idea what this means. It keeps happening and I cannot run iTunes because of it. If anyone knows what to do please tell me I am going crazy.

I FIXED MINE!! This is what I did:
1. Select "Start", "Run", and type "RegEdt32"(for VISTA "regedit"). Click OK.
2. Select HKEYLOCALMACHINE
3. In the menu, select "Edit", "Permissions". A dialog will come up.
4. Check "Allow" for "Read" and for "Full Control", then click OK
5. Expand HKEYLOCALMACHINE and repeat steps 3, 4 for the keys "Software" and "System"
6. Expand the "Software" key, and repeat steps 3, 4 for "Classes"
7. Expand the "Classes" key, and repeat steps 3, 4 for "Installer"
8. If you have made any changes in steps 1 through 7, skip to step 10. If you did not make any changes, continue with step 9.
9.Open the "Classes" key, and click on "Installer" . In the menu, click "Security", "Permissions." Click the button marked "Advanced." Check "Reset Permissions on all child objects.", then click OK
10. Close the registry editor
11. Reboot the computer
then run iTunes install again.

I can not update my version of itunes. When I install the message "Could not open key UNKNOW \ Instaler \ Products \ E84E5F4E55179FC488DCF773E79CCA45 \ SourceList \ Media. Make sure you have sufficient access to that key or contact the support team." Any

I can not update my version of itunes. When I install the message "Could not open key UNKNOW \ Instaler \ Products \ E84E5F4E55179FC488DCF773E79CCA45 \ SourceList \ Media. Make sure you have sufficient access to that key or contact the support team." Any tips on how to solve this problem?

If doesn't work try use the instructions below BUT in BOTH folders, first in SourceList and after in the Media.
Start>Run put regedit and press Ok.
1. Go to the key: HKEY_CLASSES_ROOT\Installer\Products\9B00314CD581E574FBCE93FE37F2911B\SourceLis t\Media
2. Right click in Media folder, select Permissions from the menu.
3. You will see that is no user, on the "Permissions for..." dialog box which appears next, press the "Add.." button and add in the "All"
4. Back on the first "Permissions for..." dialog box, click on each account in the top-list and make sure each has the "Full Control = Allow" and "Read = Allow" permissions
5. Click the "Advanced" button and the "Advanced Security Settings" dialog box appears
6. On the "Permissions tab" enable the checkmark box named "Replace all child object permissions with inheritable permissions from this object", then press the "Apply" button
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Well Authorize the Computer...........

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Many thanks.
Taken at face value, you're having trouble with an Apple Application Support program file there. (Apple Application Support is where single copies of program files used by multiple different Apple programs are kept.)
Let's try something relatively simple first. Restart the PC. Head into your Add or Remove Programs control panel, select "Apple Application Support", click "Change" and then click "Repair".
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When I try to reinstall iTunes, I see the error "Could not open key: UNKNOWN\Components\..."

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