I am trying to reinstall mountain lion but Mac book pro failed to install.

I am trying to reinstall mountain lion but Mac book pro failed to install

Please detail ALL you have done so far in the way of troubleshooting?   Need this info to avoid the been there done that scenarios.
Have you read for possible solutions over in the "More Like This" thread over here?----------------------->

Similar Messages

  • After upgrading to Mountain Lion my Mac Book pro takes 1min 15 to load sec to open, never took that long.

    after upgrading to Mountain Lion my Mac Book pro takes 1min 15 to load

    Apple made some changes to increase security that slowed the boot time.
    Startup - Slow Boot
    Startup - Slow Boot (2)
    Startup - Slow Boot (3)

  • All my Photos disappeared after I saved a photo from an email from my wife. I am running Mountain lion on Mac book pro 2012, help. What did I do wrong?

    All my Photos disappeared after I saved a photo to Iphoto from an email from my wife. I am running Mountain lion on Mac book pro 2012, help. What did I do wrong?

    Apply the two fixes below in order as needed:
    Fix #1
    Launch iPhoto with the Command+Option keys held down and rebuild the library.
    Since only one option can be run at a time start with Option #3, followed by #4 and then #1 as needed.
    Fix #2
    Using iPhoto Library Manager  to Rebuild Your iPhoto Library
    1 - download iPhoto Library Manager and launch.
    2 - click on the Add Library button, navigate to your Home/Pictures folder and select your iPhoto Library folder.
    3 - Now that the library is listed in the left hand pane of iPLM, click on your library and go to the File ➙ Rebuild Library menu option.
    4 - In the next  window name the new library and select the location you want it to be placed.
    5 - Click on the Create button.
    Note: This creates a new library based on the LIbraryData.xml file in the library and will recover Events, Albums, keywords, titles and comments.  However, books, calendars, cards and slideshows will be lost. The original library will be left untouched for further attempts at fixing the problem or in case the rebuilt library is not satisfactory.
    OT

  • OSX Mountain Lion on Mac Book Pro 13"

    So, I've read through some forums and they say that upgrading to OSX Mountain Lion onto a Mac Book Pro would drain the battery of it.
    I wanted to ungrade my new mid 2012 Mac Book Pro (13 inch, 2.9GHz Dual-core Intel Core i7), but I'm afraid it will damage my notebook. Like I dk, the notebook would get too hot or something. So, I was wondering whether upgrading the Mac Book to OSX Mountain Lion would be a good idea or not?
    Thanks.

    Nonsense.

  • Downloading Mountain Lion on Mac Book Pro with max RAM and after 20 hours only 1.50Gb downloaded of 4.37GB. What gives?

    I have a MAC Book Pro with maximum RAM added and tried to download Mountain Lion and after 20 hours only 1.50GB downloaded of 4.37GB. Very slow and set my machine not to sleep overnight or anything. Should I give up and stick with my snow leopard?

    I think that since Apple just released the Mountain Lion 10.8.2 Update and iOS 6, their download servers are being somewhat overloaded.  It may pay to try again in a day or two after things calm down a little.  It also depends on where you live and how fast your ISP download speeds are.
    Hope this helps

  • Mountain lion with mac book pro with retina display

    how do i download mountain lion for my mac book pro with retina display

    Go to
    https://www.apple.com/osx/uptodate/
    And fill the form.
    You will receive 2 mails with instructions after a while.

  • Wiped hard drive and tried to reinstall Mountain Lion but it installed Lion instead.

    Everything was fine except that it was going slow from 2 years worth of clutter. I wiped the hard drive and continued on with the installation instructions without noticing until now that it installed Lion instead of Mountain Lion. What do I do? If I have to reinstall, I'd rather not have to download it again. I have it on my external hard drive but it won't show up since I did all this.

    Welcome to Apple Support Communities
    You used Internet Recovery to reinstall Mac OS X, so Lion was installed instead of OS X Mountain Lion. See > http://support.apple.com/kb/HT4718
    To install OS X Mountain Lion, open the Mac App Store, log in with your Apple ID, go to Purchases and download OS X Mountain Lion. If you have a USB drive with Mountain Lion, you can use it to upgrade to OS X Mountain Lion

  • I am trying to buy Mountain Lion but I am getting this message: The product distribution file could not be verified. It may be damaged or was not signed.

    I just tried to buy Mountain Lion but I am getting this message, yes, even after I reboot: The product distribution file could not be verified. It may be damaged or was not signed.
    I don't understand what this means? Is my MacBookPro too old to work with Mountain Lion?

    The Apple Support Communities are an international user to user technical support forum. As a man from Mexico my first language is Spanish. I do not speak English, however I do write in English with the aid of the Mac OS X spelling and grammar checks. I also live in a culture perhaps very very different from your own. When offering advice in the ASC, my comments are not meant to be anything more than helpful and certainly not to be taken as insults.
    Always search the forum before posting. This is asked at least three times just below your post.
    https://discussions.apple.com/thread/3604789?tstart=0
    https://discussions.apple.com/thread/4153268?tstart=0

  • Trying to up date my OSX currently use 10.7.5. i have tried to download mountain lion but it says i need 10.8.0 but i cant find the download link to download 10.8.0 HELPPPP!!!

    Trying to up date my OSX currently use 10.7.5. i have tried to download mountain lion but it says i need 10.8.0 but i cant find the download link to download 10.8.0 HELPPPP!!!

    Download Mac OS X 10.9 from the Mac App Store. If it's incompatible with your computer, Mac OS X 10.8 will be as well.
    (91497)

  • I've tried to purchase Mountain Lion but when I click 'buy' I get the message, "We could not complete your purchase. OS X Mountain Lion is not compatible with this computer." I'm using an iMac with Lion OS on it, Why is it incompatible?

    I've tried to purchase Mountain Lion but when I click 'buy' I get the message, "We could not complete your purchase. OS X Mountain Lion is not compatible with this computer." I'm using an iMac with Lion OS on it, Why is it incompatible?

    Your Mac must be one of the following models:
    iMac (Mid 2007 or newer)
    MacBook (Late 2008 Aluminum, or Early 2009 or newer)
    MacBook Pro (Mid/Late 2007 or newer)
    MacBook Air (Late 2008 or newer)
    Mac mini (Early 2009 or newer)
    Mac Pro (Early 2008 or newer)
    Xserve (Early 2009)
    From here > Apple - Upgrade your Mac to OS X Mountain Lion.

  • I am trying to purchase mountain lion but I get the following message:  "We could not complete your purchase. The product distribution file could not be verified. It may bedamaged or was not signed."  Any help?

    I am trying to purchase mountain lion but I get the following message:
    "We could not complete your purchase. The product distribution file could not be verified. It may bedamaged or was not signed."  Any help?

    Installing the appropriate combo update may help...
    If you are running v10..7 Lion, install the OS X Lion Update 10.7.4 (Client Combo)
    For 10.6 Snow Leopard >  Mac OS X 10.6.8 Update Combo
    Then restart your Mac. Try the App Store.
    If that doesn't help, try the following..
    Quit the App Store if it's open.
    Open the Finder. From the Finder menu bar top of your screen click Go > Go to Folder
    Type this exactly as you see it here:
    /Library/Preferences/SystemConfiguration
    Click Go
    Move the NetworkInterfaces.plist file from the SystemConfiguration folder to the Trash.
    Relaunch the App Store and try downloading Mountain Lion.
    You may also need to disable anti virus software and turn off the Firewall in System Preferences > Security (or Security & Privacy) > Firewall

  • Trying to download mountain lion but just keep getting calculating coming up

    trying to download mountain lion but just keep getting calculating appearing

    Try to grab it from a test User Account.
    Mac OS X 10.6: Creating a new user account
              http://support.apple.com/kb/PH6651

  • Trying to buy Mountain Lion but

    Hi ,
    I'm trying to buy Mountain Lion but I just get sent around to different pages either saying I havn't bought anything or a page saying I need to uppgrade Gagage Band, iPhoto,iMovie. So I download and install but the only thing that happens is that the change date gets changed. The program itself doesn't and I get a folder called _MACOSX but there is nothing in it that works.
    I thought it was suposed to be easy to buy through App Store.
    Hmm
    Martin
    Sweden

    Thanks a lot ! Worked like a charm after I pressed the ¨buy¨ button twice (2) , Best regards Martin

  • I.m trying to download Mountain Lion but has only downloaded 79 meg and seems to be stuck any ideas

    I.m trying to download Mountain Lion but has only downloaded 79 meg and seems to be stuck any ideas

    Do you get a particular error message? What exactly happens.

  • I am trying to download mountain lion but the pc goes to sleep and stops the download even though I have set my power defaults to 3 hours

    I am trying to download mountain lion but the pc goes to sleep and stops the download even though I have set my power defaults to 3 hours

    aldofromwilts wrote:
    I am trying to download mountain lion but the pc goes to sleep and stops the download even though I have set my power defaults to 3 hours
    Try setting the Energy Saver to "never" and uncheck "put hard disks to sleep when possible". You can allow the screen to sleep after any suitable time.
    Hope that helps. Regards.

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