Hi, How can I run OS X in a Virtual Machine for some test on OS X? (I have Retina MacBook Late 2013 so I do not void Terms of Service of Apple.) My Mac came with OS X Mavericks, so I have some questions; 1) Am I able to run OS X Mountain Lion or lower on a virtual machine? 2) Where can I find iso file for OS X Mavericks (or OS X Mountain Lion, Lioni Snow Leopard etc.), or is there another way to run OS X on virtual machine? 3) Does creating an OS X virtual machine or deleting it causes problems? Thank you.