Overview

Depending on the model of your Apple computer, you may be able to replace your hard drive or solid state drive. First and foremost you will need to figure out what model computer you have. To do so, go to the  logo in the upper left corner of your screen and choose "About this Mac"
 

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• MacBook Core 2 Duo
• MacBook Unibody
• MacBook Pro 13″ (2009-2012)
• MacBook Pro 13″ with Retina Display (Late 2012-Early 2015)
• MacBook Pro 15″ (2008-2012)
• MacBook Pro 15″ with Retina Display (Mid 2012-Mid 2015)
• MacBook Pro 17″ (All Models)
• MacBook Air 11″ (2010-2015)
• MacBook Air 13″ (2010-2017)
• Mac Mini (All Models)
• iMac (All Models)
• iMac Pro (All Models)
• Mac Pro (All Models)
  
  

This means that the Mac models you can’t upgrade the hard drive in are:

• Retina MacBook (All Models)
• MacBook Pro 13” (2016-2017)
• MacBook Pro 13” with Touch Bar (All Models)
• MacBook Pro 15” with Touch Bar (All Models)
• MacBook Air 13″ with Retina Display

MacBook Pro 

Instructions and images for replacing the Hard Drive in a 13" MacBook Pro: https://www.ifixit.com/Device/MacBook_Pro_13%22

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