Tuesday, November 3, 2009

Could not open key UNKNOWN ...

I am having a problem upgrading from iTunes 9.0.07 to 9.0.2. I've been trying to use the 64-bit installer and have tried disabling my anti-virus software.
I had this same problem when I was running Windows Vista Home Premium SP2 64-bit on this same computer.
At first, when I would download, I had to Download Only and then install.
When I tried to install iTunes manually, it would load very slowly at Copying Files and then say it was Rolling Back Action. After that, it would say that, "The installer encountered errors before iTunes could be configured."
I tried everything people suggested on help forums, the discussions here, and the Trouble installing iTunes or QuickTime for Windows help article in Support.
After uninstalling iTunes, making a backup of my iTunes music from Documents and getting rid of anything else iTunes, QuickTime or Apple related, I tried downloading again from the website (using Firefox). I had the problem that iTunes said it couldn't be downloaded without QuickTime. Okay, easy fix, right? I tried downloading and installing QuickTime and these errors came up:

Could not open key:
UNKNOWN\Components\69413F169B198734FA40BC8B73511DB0\108B43C0CEA676640B35306AE7D24051.
Verify that you have sufficient access to that key, or contact your support personnel.

and

Could not open key:
UNKNOWN\Components\9C4307835821FFF47864EE6DABC09AA9\EA2C92A1FBE18F42A12C111C5AADDDA.
Verify that you have sufficient access to that key, or contact your support personnel.

So then I tried doing what jnd73 said in a different discussion: http://discussions.apple.com/thread.jspa?threadID=2151409

Orignal From: Could not open key UNKNOWN ...

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