Apple mac reformat hard drive

How to erase a disk
Contents:
  1. Format Any External Hard Drive for an Apple Mac | Tutorial with Images - Geeky Nerdy Techy
  2. How to format a drive on a Mac
  3. Format Any External Hard Drive for an Apple Mac | Tutorial with Images
  4. Apple Time Machine 101 - Seagate Style

Writing over the data three times meets the U. Department of Energy standard for securely erasing magnetic media.

Format Any External Hard Drive for an Apple Mac | Tutorial with Images - Geeky Nerdy Techy

Writing over the data seven times meets the U. Department of Defense M standard. If you have any files you want to save, copy them to another storage device. Open the Disk Utility app on your Mac using one of the following methods, depending on the type of disk or volume you want to erase: If you want to erase your startup disk or startup volume: Start up from macOS Recovery , then choose Disk Utility from the macOS Utilities window. Enter a name.

Click Erase, then click Done. Reformatting a MacBook Pro will erase all of the information on the device. Be prepared to back up your MacBook before proceeding with this option. Before you actually perform the reformat, the most important thing to do is to back up your MacBook Pro. One of the easiest ways to do this is to transfer all of your files to an external hard drive or a flash drive. If you don't have an external back up for your MacBook Pro, either option is a great investment.

How to format a drive on a Mac

This will erase your old system and data, wiping away any issues that were affecting the device. Once reformatted, you'll be able to install a fresh version of macOS.


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This will boot you into macOS Recovery. You will see a window called macOS Utilities.

Format Any External Hard Drive for an Apple Mac | Tutorial with Images

Enter a name for the file that will be erased. Apple recommends using the name "Macintosh HD.

If not, you'll have to boot back into macOS Recovery as you did to begin the reformatting process. You must be connected to the internet to complete the macOS installation.

Apple Time Machine 101 - Seagate Style

This will boot you back into macOS Recovery. Once the installation is complete, your MacBook Pro should restart on its own and take you to the setup assistant. Set up your reformatted MacBook Pro to your specifications. You may transfer the files saved on your external hard drive or flash drive back to your computer at this point. Share Pin Email.