It is strictly recommended that you perform a backup before you begin this process. You can follow these instructions to install the Beta version of Mac OS X El Capitan. You may be able to download a test version if you register for the OS X Seed program from Apple, and you can also provide a feedback to Apple in order for the company to update the software before it is finally released. You can install or upgrade to Mac OS X El Capitan as a dual boot partition. Installing Mac OS X El Capitan Safely on Your Mac Device

Backup Your Mac - Perform a backup before downloading and installing Mac OS X El Capitan- you need to protect your important documents and files, thus you may have to back them up somewhere before starting the download and installation process.

For other third party apps, you may need some manual updates from manufacturer websites to complete such updates. You can simply launch App store and click on “Updates” on the tool bar if you want to update the apps you bought from Apple store.

Updates - Make sure your third party Apps are updated before installing Mac OS X El Capitan.

You need to upgrade your Mac and get access to Mac Apple store for a small fee in order to get the most out of your Mac OS X El Capitan.

Yosemite will normally require a Hard drive space of up to 5GB, but the new El Capitan will require between 15g and 20gb of space on your hard drive for successful download and installation.

Check Hard Drive Space - Make sure you have sufficient hard drive space for the installation of Mac OS X El Capitan.

You will also need to delete some unnecessary files to create more space for the installation of El Capitan. Apple recommend that you have a minimum RAM of 2G, however, a minimum of 4G space of RAM is highly recommended. You wouldn’t run into any hitches if your Mac device is listed on the acceptable Mac devices for Mac OS X El Capitan.

Create Enough Space - Check that your Mac has sufficient RAM to run the software.

You can also check this list on the “Will your Mac run Mac OS X” article on Apple website. Apple has provided a list of the Mac supported by the new Mac OS X El Capitan and if you are already running the Mavericks or Yosemite, the same lists may also apply to the El Capitan. Check Your Mac - Check whether your Mac will be able to run the new OS X 10.11.Just before you install the new Mac OS X El Capitan, you must perform few tasks to ensure that your Mac will be ready for the installation of the software: Preparing Mac Device for the Installation of Mac OS X El Capitanīoth Mavericks and Yosemite are easier to download and install on Mac devices, however, this is not the case with Mac OS X El Capitan.

Download mac os el capitan iso