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Cannot complete update of Acrobat to version 9.4.6

Oct 31, 2011 2:08 PM

Tags: #error #acrobat #install #update #professional #message

Every attempt to update my copy of Acrobat Pro 9.2.0 fails followed by this message:

"The patch has failed because the application has been modified since it was originally installed (for example, plug-ins may have been disabled)."

An Adobe TechNote recommended this procedure:

  1. Quit Acrobat.
  2. In the Finder, navigate to /Applications/Adobe Acrobat 8 Professional.
  3. Control-click (or right-click) on the Adobe Acrobat Professional application icon and choose Show Package Contents from the menu. A new Finder window will open.
  4. In the new Finder window, open the Contents folder, then open the Resources folder, and then open the AMT folder.
  5. Move AUMProduct.aup to the Trash.
  6. Try again to install the update.
I did this, restarted the computer, and tried the update again but the same error message appeared again.


Can someone recommend something else?



  • Currently Being Moderated
    Oct 31, 2011 4:59 PM   in reply to paulkirtley

    Uninstall Acrobat. Then reinstall. Then run the updaters.

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  • Currently Being Moderated
    Oct 31, 2011 9:44 PM   in reply to paulkirtley

    No, I'm not saying that at all. But if your copy of Acrobat become corrupted (which apparently happened because of the error message), that's a way of solving the problem. It's usually not necessary to do that.


    When you download Acrobat (or any other software), the expectation is that you will keep a backup of the download in case it needs to be restored.

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  • Currently Being Moderated
    Jan 5, 2012 6:23 AM   in reply to Steve Werner

    That helped in my case. (Updating Pro 9.0.0 to 9.2.0 failed with the same error.)

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