Want to highlight a helpful answer? Upvote!

Did someone help you, or did an answer or User Tip resolve your issue? Upvote by selecting the upvote arrow. Your feedback helps others! Learn more about when to upvote >

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Best way to erase a portable hard drive?

Hi, I just got done installing a new hard drive in to an iMac and used a portable hard drive when I use SuperDuper. Everything transfered without any problems. But now I want to erase the portable hard drive that contained all of the transfered data. What is the best way to erase that data so I can use the portable hard drive so I have a clean drive and can use it to back up with Time Machine?

Posted on Jan 27, 2013 12:15 PM

Reply
Question marked as Best reply

Posted on Jan 27, 2013 12:17 PM

Use the Disk Utility in the /Applications/Utilities/ folder to repartition it as GUID(or APM if you're using a PowerPC Mac) in the Mac OS Extended (Journaled) volume format.


(75379)

2 replies

Jan 27, 2013 12:18 PM in response to zipmac22

If it was set up for SuperDuper, it should be Apple-format.


Go into DiskUtility, select the partition of the external in the left column, and you should have an "Erase" option at the top of the main-activity window. You can decide if you need more than simple "Erase" (you can do a 7-pass erase, but nromally that is used when transferring a disk to a new user/buyer).

Best way to erase a portable hard drive?

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple ID.