How to convert external hard drive to APFS without data loss?

Posted by Juno to Mac Data Recovery on December 28th, 2017

When we install macOS High Sierra, Mojave or Catalina on our Mac, the internal hard drive will be automatically converted to APFS. But it won't make any changes to the external hard drives connected to Mac unless we do so manually. This article will show you how to convert external hard drive to APFS without losing data.

How to convert external hard drive to APFS without data loss?

Here is an easy method to help convert external hard drive to APFS without data loss:

Step 1: Back up files on the external hard drive

Step 2: Convert external hard drive to APFS with Disk Utility

1. Open Disk Utility, find the external hard drive that we want to convert to APFS and select it.

2. Click "Erase" at the top of the window.

3. Complete name, select format (APFS) and click "Erase".

How to avoid data loss if forget to make back up or need to recover data after conversion finished?

The best way to avoid data loss when converting external hard drive to APFS is to make back up before conversion. But if we haven't make back up before, or recognize there are still useful files on the drive after conversion finished, it's not so easy to get files back. But even under that condition, iBoysoft Mac Data Recovery can still help to restore lost files.

iBoysoft Mac Data Recovery is a professional Mac data recovery software that can recover data from external hard drive after formatting, recover deleted/lost files from external hard drive, recover data from formatted external hard drive, recover data from unmountable external hard drive, recover data from inaccessible external hard drive, recover data from corrupted external hard drive, etc. on macOS 10.15/10.14/10.13/10.12 and OS X 10.11/10.10/10.9/10.8/10.7.

Recover data from APFS drive after converting to APFS on Mac

Step 1: Connect the external hard drive to Mac and then launch iBoysoft Data Recovery.

Recover data from external hard drive after converting to APFS

Step 2: Se elect the external hard drive at which we have lost files.

Step 3: Click "Next" to search for all lost files on the not readable SD card.

Step 4: Preview the listed recoverable files, choose those we want, and click "Recover" button to get them back.

Step 5: Have a check to ensure we have got lost files back.

Still have questions?