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  1. #1

    Member Since
    Dec 08, 2010
    Upgrade then Downgrade OSX?
    Hi there,

    I'm a total newbie to Macs, so I apologise in advance if this is a really dumb question.

    I've just bought a secondhand Mac which had Snow Leopard 10.6.4 installed. I upgraded it to the latest version 10.6.5.

    Since using it yesterday, I noticed that there still quite a few annoying little things left behind from the previous owner and I now feel like I want to do a complete OSX re-install and just start afresh, before I put lots of my own files and applications on it.

    Reading the manual about this, it says "Don't attempt to install an earlier version of Mac OSX on your Macbook Pro"

    Given this, do you think it will be a problem to reinstall OSX?

    Again, apologies if this is a basic question

    Thanks for reading


  2. #2

    bobtomay's Avatar
    Member Since
    Dec 22, 2006
    Texas, where else?
    15" MBP '06 2.33 C2D 4GB 10.7; 13" MBA '14 1.8 i7 8GB 10.11; 21" iMac '13 2.9 i5 8GB 10.11; 6S
    No problem "assuming" you're using the discs that shipped with the machine.

    How to
    I cannot be held responsible for the things that come out of my mouth.
    In the Windows world, most everything folks don't understand is called a virus.

  3. #3

    Member Since
    Dec 08, 2010
    Yes I would be.... everything was included in the sale....

    That's great - thanks so much for confirming. Really appreciate the help.

  4. #4

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Nambucca Heads Australia
    iMac i5 2.7GHz, 16GB memory, OS 10.11.1.
    Before erasing anything double check the discs you received are in fact OS X.6. Not unknown for someone to update the OS from say Leopard to Snow Lopard and sell without those SL discs, just Leopard.
    Hang on to those original install discs like grim death! Using OS X.7 or later make a bootable USB thumb drive before running Installer!

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