HT201364: OS X Mavericks system requirements

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

Q: On trying to  down this popped up prevent download? The product distribution file could not be verified. It may be damaged or was not signed. what can I do?

The product distribution file could not be verified. It may be damaged or was not signed. is tge message I recieved trying to download Maverick, can you help?

 

Regards

Andy Dickson

MacBook Pro, Mac OS X (10.6.2)

Posted on Apr 16, 2014 3:07 PM

by Linc Davis,Solvedanswer
Linc Davis Linc Davis
Level 10 (208,037 points)
Applications
A:
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.

Posted on Apr 16, 2014 3:34 PM

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Andycd

Q: On trying to  down this popped up prevent download? The product distribution file could not be verified. It may be damaged or ... more

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  • Helpful answers

  • by Linc Davis,Solvedanswer

    Linc Davis Linc Davis Apr 16, 2014 3:34 PM in response to Andycd
    Level 10 (208,037 points)
    Applications
    Apr 16, 2014 3:34 PM in response to Andycd
    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.

  • by Andycd,

    Andycd Andycd Apr 17, 2014 2:02 AM in response to Linc Davis
    Level 1 (0 points)
    Apr 17, 2014 2:02 AM in response to Linc Davis

    Hi Link,

    Purrrrfect, worked exactly as you said. Now up and running Mavericks.

    Many thanks

     

    Kind regards

    Andy