Seeking older OSX upgrade from Snowleopard to Yosemite

Discussion in 'iMac' started by redss55, Jan 12, 2018.

  1. redss55 macrumors newbie

    Jan 12, 2018
    I have a 2007 iMac running Snowleopard. The hardware will support Yosemite, however I can't find that on the app store and my hardware will not run the latest OS High Sierra.

    Where can I download the upgrade software?
  2. Cougarcat macrumors 604

    Sep 19, 2003
    It's no longer available from the store. If you downloaded it in the past, it's in your Purchased tab.

    Note that El Capitan has the same system requirements so you can install that instead:
  3. Fishrrman macrumors G5


    Feb 20, 2009
    If the iMac will run El Capitan, you can try that.

    BUT ... consider yourself as having been duly warned by reading further:

    You -may- find that ANY version of the OS (from 10.9 Mavericks and later) runs slower than what you have installed now. The "OS requirements" seem to be more RAM, and most importantly -- a faster drive than the platter-based hard drive the 2007 iMac has.

    If you really want to run a "modern" (ok, that's a relative term) OS, you need a modern iMac from which to do so, that has at least a "fusion" drive inside, or more preferably an SSD.

    For a 2007 iMac, you might consider 10.8 "Mountain Lion".
    Runs pretty fast on older hardware...
  4. Cougarcat macrumors 604

    Sep 19, 2003
    I wouldn’t worry about it. Yes, SSDs are nice, but MacOS likes them mainly due to the Resume feature, which can be turned off.
  5. redss55 thread starter macrumors newbie

    Jan 12, 2018
    Thanks for the reply...ok you sold me on 10.8, after all the only reason we're upgrading is because the latest version of chrome/firefox won't install on such an old OS, and now our banks refuse to allow logging in from older browsers.

    So the question is...what do I have to do to get Mountain Lion?
  6. Cougarcat macrumors 604

    Sep 19, 2003
    Legally? You can’t unless you downloaded it before. Apple doesn’t keep OSes that no longer get security updates on the store.

    If I were you, I’d just download El Cap. You’ll get security updates and you are less likely to run into compatibility issues like this in the near future.

    If you have 2 GB of RAM and run into issues, you can upgrade to 4 on Newegg for 20 bucks.

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