Best free data recovery software for Windows & Mac: I am not responsible for any data loss, I did say make sure you have every.
Summary
- If you're using OS X El Capitan or later, select your external storage device in Disk Utility. (Select the disk name, not the volume name indented beneath it.) Then click Erase and choose the GUID partition map scheme and any Mac OS Extended format before erasing.
- Open Disk Utility. Please See Answer 20985: How to access Disk Utility macOS 2. In the top menu bar, go to View, and choose Show All Devices. Select the upper level of the drive you would like to format and click the Erase button. Choose how you would like to format the drive. Enter a Name for your drive; Choose exFAT or MS-DOS (FAT) for the format.
Content
Easy to use Recover data by 3 steps;
Multiple scan modes Fast partition scan, whole partition scan and whole disk scan;
Supported file types Image, video, audio, text, email and so on;
Format Flash Disk For Mac On Pc
Image creation Create a partition image to read and back up data;
Supported devices SD card, SDHC, SDXC, USB flash drive, hard disk and computer.
Easy to use Recover data by 3 steps;
Multiple scan modes Fast partition/whole partition/whole disk scan;
Supported devices SD card/USB/hard disk.
Free TrialFree TrialFree Trial800 people have downloaded!These instructions apply only to Mac computers with an Intel processor.
Erasing your Mac permanently deletes all of its files, so make sure that you make a backup of any files that you want to keep. If you're attempting to restore your Mac to factory settings, first learn what to do before you sell, give away, or trade in your Mac.
Start up from macOS Recovery
Turn on your Mac, then immediately press and hold these two keys until you see an Apple logo or other image: Command (⌘) and R. You may then be asked to select a user you know the password for. Select the user, then click Next and enter their administrator password.
Use Disk Utility to erase your disk
- From the utilities window in macOS Recovery, select Disk Utility and click Continue.
- Select Macintosh HD in the sidebar of Disk Utility. Don't see Macintosh HD?
- Click the Erase button in the toolbar, then enter the requested details:
- Name: Continue to use Macintosh HD as the name, or enter a different name.
- Format: Continue to use APFS or Mac OS Extended (Journaled), as recommended by Disk Utility.
- Click Erase Volume Group. If you don't see this button, click Erase instead.
- If Find My is turned on for this Mac, you may be asked to enter your Apple ID to authorize the erase. Forgot your Apple ID?
- After the erase is done, select any other internal volumes that may be listed in the sidebar, then click the delete volume (–) button in the toolbar to delete each volume.
You don't need to delete the Macintosh HD volume you just erased, or any external volumes or disk images. - Quit Disk Utility to return to the utilities window.
- If you want to start up again from the disk you erased, you should now reinstall macOS on that disk.
Mac Disk Utility Format Options
If you don’t see Macintosh HD in Disk Utility
Your built-in startup disk should be the first item listed in the Disk Utility sidebar. It's named Macintosh HD, unless you changed its name. If you don't see it there, choose Apple menu > Shut Down, then unplug all nonessential devices from your Mac and try again.
If your disk still doesn't appear in Disk Utility, or Disk Utility reports that the erase process failed, your Mac might need service. If you need help, please contact Apple Support.
Learn more
Format Disk Mac Terminal
For more information about using Disk Utility, see the Disk Utility User Guide.