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        OWC Guide
        OS X & Data Transfer Instructions
        Restore your data and operating system after upgrading the boot drive in Macs that shipped without a system DVD.

        On Macs that shipped with OS X 10.7 or later, you cannot simply remove the stock drive and replace it with a new one without some initial preparation due to the introduction of a recovery partition that many cloning programs don't account for.

        There are two methods you can select to transfer your data and OS. Method #1 is preferred for users that already have the recovery partition on their drive or a broadband Internet connection. Method #2 is preferred for users without broadband Internet access.

        The third method listed below provides a process in which a fresh install of OS X is performed on the new drive before migrating your data.
        Drive Migration
        METHOD #1
        Internet Recovery Mode
        Internet Recovery Mode via Apple Knowledge Base Article #HT4718 http://support.apple.com/kb/HT4718
        Note: If moving a drive from another Mac, using this method will completely erase the drive's data. Make SURE you have a Time Machine® backup or clone of your drive on another device.
        METHOD #2
        Recovery Partition Restore Mode
        STEP 1
        Perform your drive upgrade.


        STEP 2
        Place your original drive in an external enclosure.
        • If running OS X 10.7 or later, boot to the recovery partition on your original drive by holding down Command-R and starting up.
        • If running OS X 10.6.8 or earlier, boot normally (external drive selected automatically as boot drive)
        STEP 3
        Use Disk Utility to Restore to your new drive.


        STEP 4
        Restart or Boot your Mac to the new drive.
        METHOD #3
        Fresh OS X Installation/ Migration Assistant
        STEP 1
        Install your upgrade drive in your computer.


        STEP 2
        Place your original drive in an external enclosure.
        • If running OS X 10.7 or later, boot to OS X Internet Recovery by holding down Command-R during startup, as in Method #1.
        • If running OS X 10.6, boot to the Mac OS X installer on the USB thumb drive that came with your computer.
        STEP 3
        Open Disk Utility and format your new drive.


        STEP 4
        Install Mac OS X on your new drive.


        STEP 5
        When you have booted to the fresh installation of Mac OS X on the new drive, use Apple's Migration Assistant utility (Applications>Utilities>Migration Assistant) to transfer your data from the original drive. Apple support article on Migration Assistant


        STEP 6
        Run Apple's Software Update to ensure that all your software is up to date.


        STEP 7
        Repair disk permissions on the new drive in Disk Utility.
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