'''NOTE:''' With the introduction of macOS Catalina, certain steps in this guide are out of date.
'''''IMPORTANT: Cloning the hard drive is not recommended''''' ''if you have a Mac that uses a recovery partition (MacOS 10.7 - present) or internet recovery (2011 - present). Instead, to move your data to a new drive, first [guide|119046|create a backup of your existing drive|new_window=true]. Then, either use [guide|119499|internet recovery|new_window=true] or [guide|66371|create a bootable external drive|new_window=true] so you’ll be ready to install macOS onto your new drive and migrate your data afterward.''
If you are happy with your existing operating system installation and would simply like to upgrade your hard drive capacity, you can clone your existing hard drive to your new drive.
To clone a hard drive, you will need a way to connect the second hard drive to your Mac. Our [product|IF107-131|silicone 2.5" enclosure|new_window=true] or one of our [product|IF107-143-2|Hard Drive Upgrade Kits|new_window=true] works great for cloning your drive over.
To clone your hard drive, we recommend a program called [http://www.shirt-pocket.com/SuperDuper/SuperDuperDescription.html|SuperDuper!], by Shirt Pocket Software.
The following instructions assume that you’ll be using SuperDuper! and the 2.5" hard drive enclosure to clone onto a new 2.5" drive. If you are using a different setup, your installation process may be somewhat different.
2.5" Hard Drive Enclosure with USB 3.0 Cable x1 added.
Silicone 2.5" Hard Drive Enclosure with USB 2.0 Cable x1 removed.