Next, you need to download official OS X El Capitan, which is available from Mac store. Note: In order to clean install OS X El Capitan in Mac, you will have to erase your hard drive contents completely show below. Related Read: Check If your System is Compatible with OS X El Capitan This USB will be used exclusively for downloading and saving Mac OS X El Capitan. In order to clean install OS X El Capitan, you must have a USB with 8GB free space. Clean Install OS X El Capitan or Upgrade Your Existing OS X to El Capitan Clean Install El Capitan The second option is to clean install OS X El Capitan. The first one is to upgrade your existing OS X, be it Yosemite, Mountain Lion etc. There are two options to install OS X El Capitan in your Mac. El Capitan was announced a few weeks ago and people were waiting for it as it promises a lot of stability, great new features and control. Apple officially launched OS X El Capitan and millions of Mac users around the world are emphatically searching for ways to download and install this new piece of software.

Download and install os x el capitan