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Introduction

First Aid is a great tool for helping fix various issues relating to replacing parts on a Mac.

  1. Open Disk Utilities, which can be found in the Applications folder under Utilities Pro Tip: Take the shortcut and use Spotlight. (This method is used in this guide)
    • Open Disk Utilities, which can be found in the Applications folder under Utilities

    • Pro Tip: Take the shortcut and use Spotlight. (This method is used in this guide)

  2. Once opened, a window will appear like in the picture.
    • Once opened, a window will appear like in the picture.

    • Select the name of your Mac OS X Startup disk in the left column.

  3. Click on the First Aid button at the top of the window. A dialogue box will appear asking if you would like to run First Aid.
    • Click on the First Aid button at the top of the window.

    • A dialogue box will appear asking if you would like to run First Aid.

    • Click "Run".

  4. This procedure will take a few minutes to complete. The machine may freeze up, or lock up during this procedure. Patience is key here.
    • This procedure will take a few minutes to complete. The machine may freeze up, or lock up during this procedure.

    • Patience is key here.

    • Once completed, click done.

    • Pro Tip: To see any errors that First Aid found, click on the arrow next to 'Show Details'.

Conclusion

Close Disk Utility, and the internal drive should be ready to go.

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Mike

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