Mar 15, 2018 Choose the “exFAT” file system in the list and click “Start.” Remember, this will erase all the files on the drive! Be absolutely sure you have your files off the drive and that you’ve selected the correct drive you want to format! When you’re done, the drive should work on both Windows PCs and Macs with no problem. Dec 13, 2019 Now right click on the external drive and click on format option (double-check the drive name and capacity to make sure you are going to format the right drive.) Now enter the Volume label as you need and change the File system for exFat and click Ok.
Locate the Mac disk in the list. It will be completely empty and display a message saying “Not Initialized.” Right-click it and select Initialize Disk. Select the MBR or GPT partition table format and click OK to create a partition table for the disk. Jan 02, 2016 Either way, you’ll want to format your drive accordingly. Formatting an external drive on your Mac is quite easy, though it isn’t as evident and obvious as it is on a PC. You can format a drive in OS X using two applications: Disk Utility and Terminal. We’ll be detailing both of these methods below.
Reinstall from macOS Recovery
macOS Recovery makes it easy to reinstall the Mac operating system, even if you need to erase your startup disk first. All you need is a connection to the Internet. If a wireless network is available, you can choose it from the Wi-Fi menu , which is also available in macOS Recovery.
1. Start up from macOS Recovery
To start up from macOS Recovery, turn on your Mac and immediately press and hold one of the following sets of keys on your keyboard. Release the keys when you see an Apple logo, spinning globe, or other startup screen.
Format External Hard Drive Windows 8Command (⌘)-RHow To Format External Hard Drive Mac
Reinstall the latest macOS that was installed on your Mac (recommended).
Option-⌘-R
Upgrade to the latest macOS that is compatible with your Mac.
Why Format External Hard DriveShift-Option-⌘-R
Reinstall the macOS that came with your Mac, or the closest version still available.
You might be prompted to enter a password, such as a firmware password or the password of a user who is an administrator of this Mac. Enter the requested password to continue.
When you see the utilities window, you have started up from macOS Recovery.
![]() ![]() 2. Decide whether to erase (format) your diskFormat External Hard Drive-in Vista
You probably don't need to erase, unless you're selling, trading in, or giving away your Mac, or you have an issue that requires you to erase. If you need to erase before installing macOS, select Disk Utility from the Utilities window, then click Continue. Learn more about when and how to erase.
3. Install macOS
When you're ready to reinstall macOS, choose Reinstall macOS from the Utilities window. Then click Continue and follow the onscreen instructions. You will be asked to choose a disk on which to install.
How To Reformat External Hard Drive Mac
Please allow installation to complete without putting your Mac to sleep or closing its lid. During installation, your Mac might restart and show a progress bar several times, and the screen might be empty for minutes at a time.
If your Mac restarts to a setup assistant, but you're selling, trading in, or giving away your Mac, press Command-Q to quit the assistant without completing setup. Then click Shut Down. When the new owner starts up the Mac, they can use their own information to complete setup.
macOS Recovery exceptions
The version of macOS offered by macOS Recovery might vary in some cases:
How To Format External Hard Drive
If you can't get macOS Recovery to offer the installer you want, you might be able to use one of the other ways to install macOS.
Other ways to install macOSFormat Hard Drive For Mac
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