[Solved] APFS encrypted drive won’t mount after encryption interrupted

Posted by Katrina to Mac Data Recovery on December 3rd, 2018

As the first new file system released by Apple in almost 30 years, APFS comes with the best techniques for providing speed, reliability and features. One of big advantages to APFS is that it’s designed with encryption in mind. It combines the full disk encryption features with the data protection feature that encrypts individual files and metadata.

APFS is pretty terrific, but it isn’t perfect. Some people reported in forum that their APFS encryption drive won’t mount after encryption interrupted. When running First Aid on the APFS encrypted drive, they get error message: error unlocking APFS volume: couldn't mount disk (-69842). If your meet the similar problem, follow this article and find possible reasons and the effective solution.

Why APFS encrypted drive won’t mount after encryption interrupted?

There are numerous reasons for APFS encryption interruption, such as virus infection, power failure, bad sector, improper operation, etc. But the main reasons are invalid fsroot tree, invalid catalog file or damaged partition table, etc. So that the operating system is not able to recognize the APFS encrypted drive or mount it.

How to mount APFS encrypted drive after encryption interrupted?

If First Aid fails on the APFS encrypted drive, its file system might be seriously corrupted and needs to be rebuilt. The last and most effective solution is to erase the APFS drive with Disk Utility. But this operation will remove all saved data on the APFS encrypted drive. If you have important files and didn’t back up, we highly recommend you to recover data after APFS encryption interrupted/frozen/paused/froze firstly.

Recover lost data after APFS encryption interrupted

iBoysoft Mac Data Recovery is the best APFS data recovery software that can recover data after APFS encryption/decryption interrupted/frozen/paused/froze. It can not only recover data from encrypted APFS volume, but also recover deleted/lost files from APFS drive, recover data from formatted APFS hard drive, recover data from unmountable APFS drive, recover data from unreadable APFS hard drive, recover data from corrupted APFS drive, recover deleted/lost APFS partition, etc.

Moreover, iBoysoft Mac Data Recovery can also recover data from HFS+, HFS, FAT32, exFAT drives. It supports multiple file formats like documents, pictures, videos, audios, emails, etc. and different storage devices such as hard drive, SSD, external hard drive, USB flash drive, SD card, memory card, pen drive, etc. on macOS Mojave 10.14/10.13 High Sierra/10.12/10.11/10.10/10.9/10.8/10.7.

Step 1: Download and install iBoysoft Mac Data Recovery on Mac.

Step 2: Launch iBoysoft Mac Data Recovery.

Recover lost data after APFS encryption interrupted

Step 3: Select the APFS encrypted drive and click "Next" button.

Step 4: Enter password to start searching for lost files on the drive.

Step 5: Preview the searching results, choose files you need, and click "Recover" to get them back.

Erase the APFS encrypted drive

After successful data recovery, you are able to erase the APFS encrypted drive to reuse.

Step 1: Launch Disk Utility.

Step 2: Select the APFS encrypted drive from the left sidebar of the window.

Step 3: Click the Erase button on the top of the Disk Utility window.

Step 4: Complete the related information (name, format, scheme), then click Erase.

Still have questions?