I can't download mountain lion, it says the product distribution file cannot be verified

When I try to download it in the app store it gives me the error "the product distribution file cannot be verified. it may be damaged or not signed"...any help???

Try this
https://discussions.apple.com/message/19014576#19014576

Similar Messages

  • I can't download Mountain Lion from the App Store; it tells me that the product distribution file cannot be verified. What can I do?

    I can't download Mountain Lion from the App Store; it tells me that the product distribution file cannot be verified. What does that mean, and what can I do?

    Try starting in safe mode, holding the Shift key while your computer is starting. After starting in safe mode, open the App Store and download Mountain Lion

  • HT201364 when i tried to update OS X Mavericks, its says The product distribution file could br verified. it may be damaged or was not signed... please help me..

    ^^
    <Email Edited by Host>

    Somehow, the download is getting corrupted. First, try repairing your hard drive. Then make sure that you have disabled or uninstalled any anti-virus or internet filtering software. Also, verify that your computer's clock is set properly.
    After doing all this, try downloading again. It may be worthwhile to download on a completely different network, especially since that will be the next step if re-downloading on your current network doesn't work.
    PS - note that folks won't send you an e-mail directly from these forums, and posting your e-mail address on a public forum is generally not a good idea.

  • Mountain Lion will not download says The product distribution file could not be verified. It may be damaged or was not signed." Help....

    Mountain Lion cannot download, need help. Says "The product distribution file could not be identified it may be damaged or was not signed". What do I do?????

    If you have Intego VirusBarrier X6 installed
    1. Open /Applications/VirusBarrier X6.
    2. Click on the "Surf" button.
    3. Click on the "Ad Banner Filter" tab.
    4. Click "OFF" next to "Banner advertisement filter".
    5. Start the computer in Safe Boot, then restart the computer into normal mode.
    If don't not have Intego Virus Barrier installed
    1. Verify that the date and time is correct on the computer.
    2. Safe Boot once, then restart normally, then try downloading again.
    3. Try with a different user account if the issue persists
    If the issue persists
    Install Lion onto an empty partition (internal or external).
    Note: You can Use Disk Utility to live partition the internal drive and create a second partition large enough to install Lion.
    Start from the clean installation of Lion.
    Download Mountain Lion from the Mac App Store. Note that the original startup disk can be set as the destination for Mountain Lion during the installation process.

  • I try to download the OS X Mountain Lion, and I keep getting an error saying, "The product distribution file could not be verified. It may be damaged or was not signed." Please Help!

    I try to download the OS X Mountain Lion, and I keep getting an error saying, "The product distribution file could not be verified. It may be damaged or was not signed." Please Help!

    If you have Intego VirusBarrier X6 installed
    1. Open /Applications/VirusBarrier X6.
    2. Click on the "Surf" button.
    3. Click on the "Ad Banner Filter" tab.
    4. Click "OFF" next to "Banner advertisement filter".
    5. Start the computer in Safe Boot, then restart the computer into normal mode.
    If don't not have Intego Virus Barrier installed
    1. Verify that the date and time is correct on the computer.
    2. Safe Boot once, then restart normally, then try downloading again.
    3. Try with a different user account if the issue persists
    If the issue persists
    Install Lion onto an empty partition (internal or external).
    Note: You can Use Disk Utility to live partition the internal drive and create a second partition large enough to install Lion.
    Start from the clean installation of Lion.
    Download Mountain Lion from the Mac App Store. Note that the original startup disk can be set as the destination for Mountain Lion during the installation process.

  • I can't download mountain lion, I get the following message "could not complete your purchase, can't verify the file, it may be damaged or unsigned" ? what do i have to do ?

    I can't download mountain lion, I get the following message "could not complete your purchase, can't verify the file, it may be damaged or unsigned" ? what do i have to do ?

    The only thing that worked for me was to boot in safe mode.
    Power down.  Then press power button and hold 'shift' key until grey screen with progress bar appears... Once booted and logged in just open safari and browse to applestore. 
    No trouble at all once I did this.
    Reminder: create full backup before you upgrade OS
    Hope it helps.

  • I can't download an app or update ,It says ( the product distribution file could not be verified) in App Store ,and in iTunes says An unknown error occurred (-50) ?

    Hi:all
    I can't download an app or update ,It says ( the product distribution file could not be verified) in App Store
    ,and in iTunes says An unknown error occurred (-50) ?
    Help Please.

    See this link from another similar question.  It may need patience to resolve.  I think Thomas Reed's suggestion is best place to start.
    App Store rejects buy of Mountain Lion: Apple Support Communities

  • I can't update IPhoto, it says "the product distribution file could not be verified it must be damaged or signed in" I bought it on iTunes and have 8,000 photos already. how can I update and correct this??

    I can't update IPhoto, it says "the product distribution file could not be verified it must be damaged or signed in" I bought it on iTunes and have 8,000 photos already. how can I update and correct this??

    You might try resetting the App Store application and clear the cookies via this menu:
    as described in this website: Make use of the Mac App Store debug menu | MacFixIt - CNET Reviews
    OT

  • HT201364 i tried upgrading my macbook but troublesome to upgrade. It appears "we could not complete your purchase". besaide says, the product didtribution file could nto verified and may be damaged or not signed. in view of the above, kindly advise me.

    i tried upgrading my macbook but troublesome to upgrade. It appears "we could not complete your purchase". besaide says, the product didtribution file could nto verified and may be damaged or not signed. in view of the above, kindly advise me.

    Did anything download or are you getting this when trying to install?
    Try booting into the Safe Mode and do the installation there.
    Safe Mode
    Safe Mode - About
    There are various suggestions in this discussion. You might start with the last post first.
    https://discussions.apple.com/thread/4136660?start=30&tstart=0

  • I purchased the mountain lion and while downloading an error message appear :The product distribution file could not be verified. It may be damaged or was not signed. what i've to do to complete downloading??

    please help me coz i'm anew mac user and i don't have much knowledge about mac system

    how can i skip his error ( The product distribution file could not be verified. It may be damaged or was not signe )
    because it's driving me crazy

  • Trying to upgrade to Mountain Lion, error is  message; " product distribution file could not be verified. It may be damaged or was not signed"

    trying to upgrade to Mountain Lion, error   message; " product distribution file could not be verified. It may be damaged or was not signed" ??
    what to do? This is in App store. I followed the link e-mailed to me that an upgrade was available....... Puzzled.

    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.

  • Used code to get free upgrade to mountain lion.  When I try to download it says "The product distribution file could not be verified. It may be damaged or was not signed." Please help!

    I've seen a few threads on here about how to fix it and the ones I have tried do not work.  To make things more complicated I have moved to Japan since buying this computer so I am not wanting to call Apple Support since it will cost me a ton.  Any help at all would be greatly appreciated!

    Press Shift key in boot, go to App Store and download

  • HT201364 trying to download os x mavericks and i get an error saying "The product distribution file could not be verified. It may be damaged or was not signed." how do i fix this so i can update my new macbook pro?

    "The product distribution file could not be verified. It may be damaged or was not signed."
    please help! i want to update my computer!!!

    "Update your new MacBook Pro"?
    Well, if your MacBook Pro is new, it already has Mavericks installed and there is nothing to update.
    Go to the Menu Bar, and click the Apple logo.  Then click "About This Mac."  Does it show OS X 10.9 or 10.9.1?
    If so you are already running Mavericks.

  • HT201364 Whenever I attempt to download this message appears. "The product distribution file could not be verified. It may be damaged or was not signed." Why is that?

    "The product distribution file could not be verified. It may be damaged or was not signed." Why is that?

    Disable anti virus software if installed.

  • Buy Mountain Lion: The product distribution file could not be verified. It may be damaged or was not signed.

    Hi community,
    When trying to buy Mountain Lion I get: "The product distribution file could not be verified. It may be damaged or was not signed.”, any clue on how to fix this issue? It only happens in one of my computers.
    In the console I get an error when trying to purchase it:
    7/26/12 9:50:34.387 PM App Store: FRPurchaseManager: Preflight operation for 537386512 failed with error: Error Domain=com.apple.appstore Code=0 "The product distribution file could not be verified. It may be damaged or was not signed." UserInfo=0x7fde9bc452a0 {NSLocalizedFailureReason=Cannot create PKProduct from "file://localhost/var/folders/8l/ndt85j717d3_k8gr6ztmljdc0000gn/C/com.apple.app store/537386512/preflight.pfpkg" Error Domain=NSURLErrorDomain Code=-1100 "The requested URL was not found on this server." UserInfo=0x7fde9bc43b50 {NSUnderlyingError=0x7fde9bc42e60 "The requested URL was not found on this server.", NSErrorFailingURLStringKey=file:///var/folders/8l/ndt85j717d3_k8gr6ztmljdc0000g n/C/com.apple.appstore/537386512/preflight.pfpkg/index.sproduct, NSErrorFailingURLKey=file:///var/folders/8l/ndt85j717d3_k8gr6ztmljdc0000gn/C/co m.apple.appstore/537386512/preflight.pfpkg/index.sproduct, NSLocalizedDescription=The requested URL was not found on this server.}, NSLocalizedDescription=The product distribution file could not be verified. It may be damaged or was not signed., NSUnderlyingError=0x7fde9bc442b0 "The requested URL was not found on this server."}
    1) I deleted the /var/folders/8l folder (gets recreated when opening the app), no result.
    2) Tried to check "Best attempt" for both OCSP and CRL certificate management in Key Chain.
    No result in any way.
    Any idea?

    Hello
    It can be an issue related to antivirus so disable it or download in safe mode
    regards

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