Model A1369, 1.6, 1.7, or 1.8 GHz Processor, 64, 128 or 256GB Flash Storage

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Do I need to reinstall Mountain Lion if I upgrade my SSD?


I have a Macbook Air 13" Mid 2011 with 128GB of storage. I am thinking about upgrading this limited storage capacity SSD on my Macbook Air to a much higher capacity SSD of around 400GB using an SSD available from OWC Computing. After reading guides for installing a new HDD on other laptops, I understand that it is necessary to reinstall the OS onto the new HDD. However the guide for installing a new SSD for Macbook Air does not mention reinstalling the OS.

My question is whether or not I have to reinstall the OS(Mountain Lion) onto the new SSD after I upgrade it.

Thanks for the help!


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Yes, you have to reinstall it, because you will change your drive with OS to another with no OS on it.

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Thats what I thought. Thanks a lot for your help and quick response!


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