1 Reply Latest reply: May 26, 2013 6:08 AM by Topher Kessler
korakiana Level 1 (0 points)

I get the following statement: 'This copy of the install OS X Mountain Lion application can't be verified. it has been corrupted or tampered with during downloading. Solution ?

iMac, OS X Mountain Lion (10.8)
  • Topher Kessler Level 6 (9,865 points)

    Try re-downloading it from the Mac App Store. If the problem still happens then open the OS X Terminal application and run the following command:


    open $TMPDIR../C


    In the folder that opens, locate the folders called "com.apple.appstore" and "com.apple.SoftwareUpdate" and remove them, and then try downloading OS X again.