11 Replies Latest reply: Jun 10, 2009 1:27 PM by lostdestany
MartinVaughan Level 1 (0 points)
I have been using Itunes 8 for a couple of months or so. An option came up to install the latest upgrade of Itunes ( which I selected and downloaded it. It went through the process but then failed to open. I then double clicked the desktop icon and it started the installation all over again but then fails and comes up with "Fatal error during installation".

I have tried to un-install all Itunes related programs inc of quicktime and then reinstall using the original CD I have with the same results.

I am using Windows Vista.

Please can someone assist as I am now without Itunes on my laptop and very upset!!!

Windows Vista
  • Katrina S. Level 7 (24,095 points)
    Welcome to AD!

    Are you using the Apple Software Updater program? If so, stop.
    One common reason installs don't work is QuickTime not installing correctly.

    Can you get QT standalone to install, as mentioned here?
  • MartinVaughan Level 1 (0 points)
    Thanks for getting back!

    The first occasion I used the apple update software program! I then un-installed Itunes and re-installed with a fresh download from Itunes and same problem.

    I have gone into control panel to un-install all Apple related programs and one is failing to un-install - Apple Software update!! Half way through it comes back with an error "There is a problem with this window installer package. A program required for this install to complete could not be run. Contact...."

    I have also downloaded the stand alone Quicktime program from the exact website you mentioned and all installs correctly. Then you double click the desktop icon and it says the shortcut is invalid. I then open quicktime through the start button and it starts installing it again from stratch and displays the Fatal error during installation again!

    Wonder if it has anything to do with IE8? Recently installed this from IE7.

    Would deleting the registry files help as I note that even after un-installing all programs there is still registry files.
  • Katrina S. Level 7 (24,095 points)
    You're welcome!
    Alas, I think you are going to have to use the Windows Installer Cleanup Utility to get rid of ASU, QT and iTunes, with so many installations problems.

    If you want a more complete uninstall process, Apple has their own document on it. Scroll down to the section named *General installation troubleshooting*.
    The installer cleanup is in the third line - click on each line and you'll get more detail.
  • MartinVaughan Level 1 (0 points)
    Tried both methods or using the Windows Installer Cleanup Utility and following the Itunes manual removal method. Both went well until it came time to re-install it all again.

    Half way through the installation phase it came up with an error about an installation file required is missing and it cannot complete the installation. When I clicked okay it un-installed something within the quicktime phase of installation and then carried on installing the rest. And now we are back to square one..... So my first e-mail now refers. I am so confused......
  • Katrina S. Level 7 (24,095 points)
    Rats. Exact error messages are probably needed at this point.
    Another trick is trying to install it using a new windows admin account on your PC, with all AV software temporarily disabled. Does the install go through in that other account?
  • Stef79 Level 1 (0 points)
    I've got exactly the same problem as MartinVaughan. I've tried everything you said Katrina and what the apple suport site said, but I still got the fatal error message when I install Itunes(I translate it from dutch): There is a problem with this windows installer package. A program required for this install to complete could not be run.
    Is there anybody who knows a solution for this problem?? Please help!
  • MartinVaughan Level 1 (0 points)
    Yippee someone else with the same problem - thought I was the only one. Sorry Katrina I still get the same problem and the same error message saying that there is a windows installer package problem. This comes up prior to it installing Quicktime and then once you click okay it carries on installing Quicktime. Once quicktime is installed the desktop icon does not point to anything and the Quicktime icon on the start button starts the whole process again! I have tried installing the Quicktime program seperate and also with Itunes.

  • phelum Level 1 (0 points)
    I'm trying to install iTunes 8.2 on a PC with Win XP sp 2 but the installer always reports "The installer encountered errors before iTunes could be configured." and fails.

    This error message seems to lack critical details that might help me to diagnose the problem. Is there a log written anywhere that contains details ?

    The system currently has iTunes 7 installed but this version won't talk to my new iPod. I've tried removing this using Control Panel -> Add/Remove Programs but clicking the Change/Remove button causes a delay of about 30 seconds and then no further action.

    Steven Saunderson
  • Katrina S. Level 7 (24,095 points)
    Is this using the QuickTime standalone installer? The version withOUT itunes bundled into it?
  • tso413 Level 1 (0 points)
    I get the same message. I have tried going in and manually deleting the old files and still no luck. anyone know what to do?

    It will get up to the point where it say's copying new files, then it will go to "rolling back action" and the progress bar will reverse directions until it gets to nothing then it gives me the error:

    *iTunes Installer Completed*

    The installer encountered errors before iTunes could be configured.
    Your system has not been modified. To retry these operations at a later time, please run the installer again.

    Click finish to exit the installer.
  • lostdestany Level 1 (0 points)
    I have the same problem, did all of the above. I am in despair.