Erase Hard Drive
Hello
I have a macbook pro that is running version 10.10.5 (Yosemite). I would like to erase the hard drive I have, and have the hard drive boot up as if though it was the first time being used by a new user. I have read the instructions Apple has given me, but when I go to disk utility it will not allow me to erase the hard drive. Any suggestions would be greatly appreciated.
MacBook Pro, OS X Yosemite (10.10.5)