How to Restore a MacBook

If you are having problems with your MacBook or have purchased a used MacBook, you may want to restore your MacBook to its original factory settings. Starting with a clean hard drive may resolve problems with crashing or running slowly. Restoring your MacBook erases all files and applications. Back up any files you wish to keep before restoring your computer.

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Plug in your MacBook to ensure that there will be a steady power stream during the restore process.

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Insert the Mac OS X Install DVD. This is the original DVD operating system disk that came with your MacBook.

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Click on the Mac OS X logo to launch the Mac OS X installation process.

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Answer the questions on the screen relating to your language, geographical location and the drive for the OS X install.

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Click "Options" in the "Select the Destination" screen.

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Click "Erase and Install".

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Click "OK" when asked if you understand that your hard drive will be erased, and that you will need to re-install all of your applications.

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Restart your computer when the Installation process is finished. Once your MacBook restarts, the Setup Assistant will guide you in setting up your computer.