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JoeRito

macrumors 6502a
Original poster
Apr 12, 2012
505
155
New England, USA
Are folks having issues getting updates to a device that previously ran Lion or ML and just upgraded to Mavericks? The Mavericks upgrade on my 2011 MBP went fine, now I have 6 updates in the App Store and these won't download and install.

Error message says, "We could not complete your update. Failed to verify the preflight file. It is not signed by Apple."

Any advice please?
 
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