To erase the non-startup drive, use a Mac's Drive Using Disk Utility (OS X El Capitan or later) After the non-startup drive is erased, you can start the install process. Step 2: Download the macOS Sierra Installer from the Mac App Store. Make sure you protect your important data and securely erase it first! External Drives with Disk Utility on the Mac. Get some choices for your drive’s new format, partition. Macs running OS 10.5 and higher -- Leopard to Yosemite -- include the Disk Utility program that allows users to check and repair disks and drives and to format or erase drives. Optimize your Mac's storage using Disk Utility software. Fortunately, your Mac comes with all the tools you’ll need to do this, making it super simple for you to erase and format that drive for your needs. External battery for macbook pro 2015. In this tutorial, we’ll show you how you can format a USB flash drive using the Disk Utility built into your macOS operating system.

Mac Operating-system X Hill Lion provides users various methods to access the Airport and three typical options for formatting a tough push. You can start Port within Mac OS A to format difficult drives currently not in make use of; you can furthermore use Mac pc OS Back button Recovery to start Terminal outside the operating system and format hard runs that can't be formatted while Mac pc OS X is energetic. Once you get into Airport, you can select to reformat á disk and maintain the authentic settings, safely erase a disk to prevent data recovery or execute a regular format. All three choices get ready your business personal computer for a fresh operating program installation by eliminating all of your organization data.