1. Step 1: Before you can install OS X El Capitan, you will need to download it from the Mac App Store. It is available for free. Make sure that when the installer is finished downloading, you quit the installation process and don’t actually allow it to install El Capitan over your existing Yosemite or Mavericks system.
2. First, launch Disk Utility on your Mac. Next, choose the SSD disk and go to the Erase tab. Set name and choose the format – OS X Extended (Journaled), and Partition map are entered by default. Go to the App Store and download OS X El Capitan installation.
3. Depending on what version of Mac OS X is on the computer right now, you can try to use Recovery Mode (Command + R on boot) to reinstall. A better option may be to use a USB installer drive for El Capitan or whatever version you are hoping to reinstall.
4. I ran Disc Inventory X to see where the excess space was taken. Remove old iPhoto library. Look at this screenshot from Disk Inventory X: The pink section surrounded by the yellow line is my old ‘iphoto’ library. The large turquoise section to the left is the new ‘Photos’ library. El Capitan came with a new app called ‘Photos.’.

Moving OS X El Capitan to a new SSD. In this article we will tell you how to move OS X El Capitan to a new SSD disk. With us, you will see how simple and easy you can do this and what advantages you will get. Follow our step-by-step instruction: First, launch Disk Utility on your Mac. Next, choose the SSD disk and go to the Erase tab.

Apple on Wednesday released OS X El Capitan as a free upgrade and as a result, lots of Mac users are busy upgrading their desktop and notebook computers.

Install Os X El Capitan On New Hard Drive

As with OS X Lion, OS X Mountain Lion, OS X Mavericks and OS X Yosemite, Apple makes it easy for users to install the upgrade by downloading El Capitan from the App Store and running the installer.

See also: Apple OS X El Capitan review: A more refined Mac experience

Install Mac Os X El Capitan On New Hard Drive

For most users, this is the best way to upgrade because it means your existing programs and data remain where they are. Sometimes, however, you don't want to do a regular OS upgrade. Maybe you want to start fresh or maybe you need to install El Capitan on a machine that doesn't already have OS X installed. For those users, the best bet is to do a clean installation, erasing the hard disk and installing from scratch.

If you want to do a clean install of OS X El Capitan on your Mac — or on a new hard drive — you can do it, it just takes a bit of work.

If you've gone through the clean install processes in the last few years, these instructions will look familiar. (That's because they are almost the same as past years, albeit with changes made for the proper OS name). With a little time, it's relatively easy to create a bootable copy of OS X El Capitan that you can run from a USB stick or other drive.

Note: A clean install will erase all of the contents on your disk drive. Make sure to back up your important files, settings and apps before proceeding.

After the Install

After installing OS X El Capitan, you can start restoring your programs and settings using either a Time Machine backup or Migration Assistant.