https://anadoxin.org/blog/creating-a-bootable-el-capitan-iso-image.html It's very easy to create a bootable ISO image of El Capitan, if you have a working El Capitan system installed on your machine. Start with going to AppStore and installing El Capitan, so you'll have an application named Install El Capitan in your Application list. Then, you should follow the steps below. There is an installati