![]() For more on Mountain Lion, be sure to read the official Cult of Mac review. If you’d rather install Mountain Lion without a bootable copy and keep your setup the way it is, refer to our general tutorial. Inside, we’ll show you how to setup your very own OS X Mountain Lion USB installation drive, using an easy to follow video walkthrough. Now that you have a bootable copy of Mountain Lion, this drive/disk acts as a full-fledged setup tool for upgrading other Macs to the new OS. ![]() Gone are the clunky days of using CDs to reinstall an OS. Choose your Mac’s hard drive and begin installing Mountain Lion.īy following those steps, your Mac will be restored to Apple’s stock setup and all of your personal files will be gone. Creating a USB install drive is one of the simplest ways to ensure that a fresh clean installation of OS X Mountain Lion is only a few steps away. ![]() ![]() Once your Mac’s hard drive is erased, quit Disk Utility and go back into the Mountain Lion installer.(Make sure you have a backup first, just in case.) From the erase tab, choose “Mac OS Extended (Journaled)” and wipe your drive. Inside the Mountain Lion installation tool, you can open Disk Utility and erase your Mac’s hard drive.Restart your Mac while holding down the option key.For a clean install of Mountain Lion on any compatible Mac, follow these steps: Now that you have a bootable copy of Mountain Lion, this drive/disk acts as a full-fledged setup tool for upgrading other Macs to the new OS. Mac OS X Lion Installer Mac OS X 10.
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