Intro: How to Format or Partition a Drive in Mac OS X
In this tutorial, I will show you how to partition or format a drive in Mac OS X using the built-in Disk Utility.
This tutorial was recorded on a Macbook Air with Mac OS X 10.10.3 Yosemite installed. But it should also work for the other versions.
Thanks for watching! ...and don't forget to like and subscribe!