To make OS X Yosemite bootable USB installer drive, there are few requirements.
Creating a bootable USB drive of OS X Yosemite 10.10 if you want to save it on a external drive for future usage or just want to install it on multiple Mac computers.
Now, TransMac will write Yosemite Zone onto your USB drive. A file selection window will pop up choose your Yosemite Zone disk image file (it will probably be called 'Yosemite-Zone.dmg'), and proceed. Once your USB drive is done formatting, right-click it again and click 'Restore with Disk Image'. Niresh Mac OSX Yosemite 10.10.1 Overview. This free download is the standalone ISO disk image of Niresh Mac Yosemite. Niresh Mac OSX Yosemite 10.10.1 is a special Apple released for both desktop and servers which provide a very sleek and powerful environment to enhance the capabilities of the computer.