HT201364: OS X Mavericks system requirements

Learn about OS X Mavericks system requirements
janicehauck
Level 1 (0 points)

Q: What does it mean when it says that the product distribution file could not be verified and that it may be damaged or it wasn't signed?

My computer will not allow me to download maxericks because of this problem and i don't know what to do.

MacBook Pro, Mac OS X (10.7.5)

Posted on Apr 20, 2014 10:12 AM

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janicehauck

Q: What does it mean when it says that the product distribution file could not be verified and that it may be damaged or it wasn't si ... more

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  • by arthur,

    arthur arthur Apr 20, 2014 11:06 AM in response to janicehauck
    Level 5 (5,193 points)
    iBooks
    Apr 20, 2014 11:06 AM in response to janicehauck

    The product distribution file could not...: Apple Support Communities

  • by Eric Root,

    Eric Root Eric Root Apr 20, 2014 12:06 PM in response to janicehauck
    Level 9 (74,160 points)
    iTunes
    Apr 20, 2014 12:06 PM in response to janicehauck

    Mavericks Download can’t be verified

  • by Linc Davis,

    Linc Davis Linc Davis Apr 20, 2014 12:24 PM in response to janicehauck
    Level 10 (208,037 points)
    Applications
    Apr 20, 2014 12:24 PM in response to janicehauck
    Several causes for this problem have been reported. Please take each of the following steps that you haven't already tried. Stop when it's resolved.
        
    Step 1
     

    Back up all data.

     

    From the menu bar, select

      

    ▹ System Preferences... ▹ Network

      

    If the preference pane is locked, click the lock icon in the lower left corner and enter your password to unlock it. Then click the Advanced button and select the Proxies tab. If any proxy options are selected, make a note of them and then deselect them. You don’t need to change the bypass or FTP settings. Click OK and then Apply. Test. The result may be that you can't connect to any web server. Restore the previous settings if that happens.

      

    Step 2

      

    Rebuild the Spotlight index. If you try to search now from the magnifying-glass icon in the top right corner of the display, there will be an indication that indexing is in progress.

      

    Step 3

    Start up in safe mode and log in to the account with the problem. You must hold down the shift key twice: once when you turn on the computer, and again when you log in.

    Note: If FileVault is enabled, or if a firmware password is set, or if the startup volume is a Fusion Drive or a software RAID, you can’t do this. Ask for further instructions.

    Safe mode is much slower to start and run than normal, with limited graphics performance, and some things won’t work at all, including sound output and Wi-Fi on certain models. The next normal startup may also be somewhat slow.

    The login screen appears even if you usually login automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.

    Test while in safe mode. Same problem?

    After testing, restart as usual (not in safe mode) and verify that you still have the problem. Post the results of the test.