Reformat hard drive mac mountain lion

Martin contributed English translations for a collection of Japanese poems by Misuzu Kaneko. She has worked as an educator in Japan, and she runs a private voice studio out of her home. She writes about education, music and travel. Skip to main content. Identify Hard Drive Disk Identifier 1. Click the "Go" menu and select "Go To Folder Double-click the highlighted "Disk Utility" icon to open Disk Utility.

Double-click the highlighted "Terminal" icon to open Terminal. Shut down your computer by pressing and holding the "Control-Command-Eject" keys simultaneously. Press and hold "Command-R" while the computer reboots until the Apple logo appears. Creating and Using a Terminal Format Command 1. Highlight the code and press "Command-C" to copy the edited code to the clipboard. Tip When entering a new name for the disk, it's best to use a single word and don't use special characters.

It may vary slightly or significantly with other versions or products. Accessed 06 November Be sure to select the volume name and not the device name, which is usually the name of the physical drive — GB WDC WD5 , for example. Click the Erase tab. Give the startup drive a name or use the default name. Click the Erase button.

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When you are asked if you are sure you want to erase the drive, click Erase. Your computer's eligibility must be verified before you can download and restore OS X. This happens because the bootable media you created doesn't contain all the files necessary for the install. The installer checks for any missing or new files it needs, downloads the files from Apple's servers, and then starts the installation process.

Click Continue. Read through the license and click the Agree button. Click the Agree button a second time to confirm you didn't accidentally click the Agree button. The installer displays a list of drives you can install Mountain Lion on. Select the target drive the startup drive you erased earlier and click the Install button. The installer checks the Mac App Store for updates and any other files it needs.

After restarting, your Mac starts the system setup process, including creating an administrator account and creating an iCloud account if you want one.

Perform a Clean Install of OS X Mountain Lion on Startup Drive

Select your country from the list on the Welcome screen and click Continue. Select your keyboard layout from the list and click Continue. Choose whether to transfer user data, applications, and other information from another Mac, PC, or hard drive. You can also choose not to transfer data now.

Select the Not Now option. You can transfer data later using the Migration Assistant included with the OS. This way, you ensure that your Mac is up and running with Mountain Lion without any problems before you spend the long time it takes to transfer your data. Make your selection and click Continue.

How to format a startup drive for a Mac | Macworld

Enable location services. This feature allows your apps to figure out your approximate location and then use that data for various purposes, ranging from mapping to advertising. You can enable location services at any time, so you don't have to decide now. Make your selection, and click Continue. The installer asks for your Apple ID.

You can skip this step if you want, but if you supply the information now, the installer preconfigures iTunes, the Mac App Store, and iCloud. It also pulls account information you provided in the past to make the registration process easier. Make your selection, and click Skip or Continue.

Step 1: Make a connection

Click Agree. You know the drill; click Agree again.

Allow the installer to set up iCloud on your Mac. You can do this yourself later, but if you plan to use iCloud, let the installer take care of the setup process.


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If you chose to have the installer set up iCloud, your contacts, calendars, reminders, and bookmarks are uploaded to and stored in iCloud. Set up Find My Mac , a service that uses location services to determine where your Mac is if you misplaced it or it is stolen.

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With Find My Mac, you can remotely lock the Mac or erase its drive, which is handy for lost or stolen Macs. Click Allow. Create your administrator account. Enter your full name. The account name defaults to your full name with all the spaces and special characters removed.

Install OSX Mountain Lion 10.8 to a external hard drive.

The account name is also all lowercase letters. You also need to enter a password. Don't leave the password fields blank. You can choose to allow your Apple ID to reset the administrator account password. If you occasionally forget important passwords, this may be a good option for you. You can also choose whether or not a password is required to log in to your Mac. Make your selections and click Continue.