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Q: MacBook not installing Yosemite OS X

I bought a second hand MacBook Pro about a year ago and it was a model from around 2011 so I've never updated a Mac before so I've probably done it wrong.. I downloaded the latest OS of Yosemite from the App Store, like it told me to, and i started the installation process. At the end i get to a screen saying "The OS X installation couldn't be completed." with options such as shut down, restart, save long and view log. On another page is a lot of coding and stuff that I don't understand haha. The actual set out and top bar looks as though it's already been updated but like it's in safe/recovery mode or something.

MacBook Pro, OS X Mavericks (10.9.5), Not sure which version of Mavericks

Posted on Sep 8, 2015 5:16 AM

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Q: MacBook not installing Yosemite OS X

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  • by madsbonnie,

    madsbonnie madsbonnie Sep 9, 2015 6:03 AM in response to Lexiepex
    Level 1 (0 points)
    Sep 9, 2015 6:03 AM in response to Lexiepex

    rright, when I open my laptop though, it looks as though something has changed and that it has partially installed yosemite, it's not like Mavericks is still running. Things such as the exit minimise window buttons and the top menu bar have changed. I can't get into anything other than the menu bar options at the top, so it seems like its almost installed which is why I don't understand why there isn't just an easy fix solution

  • by Lexiepex,

    Lexiepex Lexiepex Sep 9, 2015 7:39 AM in response to madsbonnie
    Level 6 (10,497 points)
    Mac OS X
    Sep 9, 2015 7:39 AM in response to madsbonnie

    No problem, if Yosemite came through: there still is a RecoveryPartition, when not Yosemite than Mavericks. When you say, it looks like it is Yosemite, not Mavericks, nothing changes. Start up (CMD+R) in the recovery partition (have a good internet connection), and choose "install OSX". After download and replacing all system files (not your user data), it will start in a good OS, I suppose. Probably Yosemite, perhaps Mavericks. Then you can go on.

    I have to go now for about 5 hrs.

    Lex

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