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Redrum509

macrumors regular
Original poster
I'm selling my 2011 macbook air to upgrade. I was wondering how I factory reset the air? DO I have to re-install the OS? Thanks.
 
I'm selling my 2011 macbook air to upgrade. I was wondering how I factory reset the air? DO I have to re-install the OS? Thanks.

Hold Cmd-R when booting. Erase the SSD in disk utility, then go back to the main restore menu and install the OS.
 
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