Why am getting the error "An error occurred while preparing the installation. Try running this application again." when I try to install Mountain Lion?

I am trying to upgrade a family members macbook pro to 10.8 but getting the following error: An error occurred while preparing the installation. Try running this application again.


Any suggestions?


I have already done a software upgrade. All that was needed a was an iTunes update.

MacBook Pro, Mac OS X (10.6.8)

Posted on Aug 25, 2013 10:27 AM

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Why am getting the error "An error occurred while preparing the installation. Try running this application again." when I try to install Mountain Lion?

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