I keep getting "hash mismatch" when trying to download Mountain Lion from the App store

I've been trying to download the new Mountain Lion from the App Store & keep getting "hash mismatch" message. I was able to download on my 1 computer, but no luck on the 2nd computer, which is up-to-date on all updates & software. Support even put a fresh copy of the App in my account & I still get that same message. Someone suggested AppCleaner, but how do you delete the OS to re-install the new. Didn't think that was possible. Any suggestions - I've tried quitting & logging out of the App Store & even re-starting (several times)

-  Temporarily disable anti virus software if installed.
-  Apps such as Little Snitch, Net Nanny, and Hands Off can prevent apps from downloading including Mountain Lion.
How to re download apps from the Mac App Store:
Open the App Store. From the menu bar click Store > Sign In
Click Purchases from the top of the App Store window.
Select Mountain Lion. Then right or control click where you see Installed then click Install.
Make sure and use the same Apple ID used for the original purchase.

Similar Messages

  • I have downloaded mountain lion from the app store on another computer.  I have then gone to find it in "purchases" in the app store on my own macbook pro and it just comes up as "you have not purchased any apps" how to I get my mountain lion?

    I have downloaded mountain lion from the app store on another computer.  I have then gone to find it in "purchases" in the app store on my own macbook pro and it just comes up as "you have not purchased any apps" how to I get my mountain lion?

    Mac App Store: Hiding and unhiding purchases
              http://support.apple.com/kb/HT4928

  • My imac keeps crashing when trying to download logic pro from the app store

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    it keeps crashing my mac out and restarting
    The Logic Pro app is crashing?
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    How to re download apps from the Mac App Store:
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      Model Identifier:          iMac5,1
      Processor Name:          Intel Core 2 Duo
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      Total Number Of Cores:          2
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      Bus Speed:          667 MHz
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    Mac mini (Early 2009 or newer)
    Mac Pro (Early 2008 or newer)
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    MacBook (Late 2008 or newer)
    iMac (Early 2009 or newer)
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  • Keep getting error 45054 when trying to download my purchases from cloud.

    I keep getting error 45054 when trying to download my purchases from cloud.

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  • I keep getting an error whilst trying to download mountain lion

    I keep getting an error whilst trying to download mountain lion

    taniafromyandina wrote:
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  • HT203421 why do i get error 1004 when trying to download mountain lion software?

    why do i get error 1004 when trying to download mountain lion software?

    Read this
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  • I'm trying to download Bioshock Infinite from the app store and get a message saying there isn't enough disc space; but the Bioshock support page says I only need 30G and I have 60 free on my hard drive

    Whoops, I think I should have posted my message here...Anyway, I'm trying to download Bioshock Infinite from the app store but get a message saying I don't have enough disc space.  The game requires 30 G and when I look at my internal hard drive it shows 60 G free. 
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    Jenniferwood2829 wrote:
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    how do i delete from the startup disk? I am trying to get Mountain Lion from the App store and it says that the purchase was not complete because i need 4.06 GB space to download OS x 10.8. and to remove items from my startup disk to increase space. How?
    Thanks

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    Try deleting the cache, cookies, and preference files (plist) associated with the App Store.
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    Now here:
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    Click Go
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    com.apple.storeagent.pllist
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    Click Go
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  • Tried to download a book from the app store and didn't upload but 14 pages

    I tried to download a book from the app store from my computer and when I clicked on it, it downloaded as an app on my ipad, but only 14 pages downloaded. After reviewing the comments on this particular purchase, others had the same problem and now we are all out the $12.99 it cost to purchase this product. Is there any way to get my money back?

    Delete the book from the iPad and download it again, directly from the iPad, not your computer. You will not be charged again for the download. See if the complete book downloads then. If not, either email Apple at the store or call the number they provide under support.

  • I have installed the most recent version of Snow Leopard on my MAC, and I am trying to install Mountain Lion from the Apple Store.  It will not install, because it says I do not have 2GB of memory, even though I have over 200GB available.  Please help.

    I have installed the most recent version of Snow Leopard on my MAC, and I am trying to install Mountain Lion from the Apple Store.  It will not install, because it says I do not have 2GB of memory, even though I have over 200GB available.  Please help.

    Welcome to the Apple Support Communities
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  • I downloaded the mountain lion from the app store and it downloaded. when i installed the mountain lion it said that the hd disk is broken and cannot be repaired, and the other disk doesnt have enough space!

    I downloaded the mountain lion from the app store and it downloaded. When i installed the mountain lion it said that the hd disk is broken and cannot be repaired, and the other disk doesnt have enough space! HELP and i cannot return to my desktop with the old sofware so i cant use my computer normaly

    This error means that your hard drive is badly corrupt and cannot be repaired by Disk Utility. Since you say you don't have backups, this is very bad news. You may already have lost data irrevocably.
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    https://discussions.apple.com/message/21614450#21614450
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  • HT201272 Keep getting error #499 when trying to download a song from an album I purchased that failed to download.  Error message appears when trying to download from iTunes and the cloud. Re-starting the computer did not help.

    I downloaded an album I purhcased a few days ago but one of the album's songs did not download.  I received an error message, #499, for which I can get no explanation or interpretation of what error #499 even is (other than generic terms).  All my efforts to re-start the download have failed.  I've tried several times to download the file to no avail, tried the cloud service to no avail, and re-started the computer to no avail.
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    I can provide the purchase receipt number if it is required.

    Hey SDGardella,
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    iTunes: Advanced iTunes Store troubleshooting
    http://support.apple.com/kb/TS3297
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    Matt M.

  • I am getting Error code 100 only when trying to purchase Logic Pro from the App Store. Why?

    I have done all the regular trouble shooting, can download a free app just fine. I have more than enough money available for the purchase, but Logic Pro is giving me the error 100, and saying to contact I Tunes Support. I have, but don't really want to wait to start working on the projects I need to finish if there is a quick fix out there. Please help if anyone knows what's up? Thanks!

    it keeps crashing my mac out and restarting
    The Logic Pro app is crashing?
    Try deleting the app using this free utility >  Uninstall your apps easily. MacUpdate.com
    That will remove all the associated files not just the app itself.
    Then re download the app.
    How to re download apps from the Mac App Store:
    Open the App Store. From the menu bar click Store > Sign In
    Click Purchases from the top of the App Store window.
    Select which apps you want to re download. Then right or control click where you see Installed  then click Install.
    Make sure and use the same Apple ID used for the original purchase.

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