Format a Hard Drive Using Mac OS X Disk Utility

Posted May 9, 2008 at 12:08am by iClarified | Please help us and submit a translation by clicking here | 225239 views

These are instructions on how to format a hard drive using Mac OS X Disk Utility.

Step One
If your hard drive is an external drive, connect it to the computer. Launch Disk Utility from the Applications:Utilities folder.

Step Two
From the list on the left select the drive you would like to format

Step Three
Click to select the Erase tab.

Step Four
From the Volume Format dropdown select the format you would like the drive to be in.

Step Five
Enter the title for your volume in the Name field.

Step Six
Press the Security Options... button to specify how to erase the drive. You can choose: Don't Erase Data, Zero Out Data, 7-Pass Erase, or 35-Pass Erase. Click the OK button to continue.

Step Seven
You are now ready to begin the format. Click the Erase... button to start.

Step Eight
From the popup that appears click the Erase button to confirm you would like to format.

Step Nine
You will notice a status bar appear with the progress of your format.

Step Ten
Once the format has completed you will notice the disk remount in Disk Utility!

Add Comment
JIM FITZPATRICK - August 12, 2015 at 8:19pm
Thanks a mil. JF
Don Ellis - July 13, 2015 at 2:34pm
I tried this with a Seagate Expansion 1T STEA1000400 and a 2011 MacBook Pro. The described process is what I expected, but the drive doesn't show up in Disk Utility. Shows up just fine on my ChromeBook (which does have a USB3 port).
Jacob116 - June 19, 2015 at 9:22am
oh my goodness...thank you so much.
Alana - June 8, 2015 at 11:14am
extremely helpful thank you !
walt - May 3, 2015 at 6:38pm
Nice n easy, thank you!!!
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