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MacBook Pro How can resume APFS decryption procedure?

I was decrypting a drive from Recovery menu and I restarted machine because it was taking a lot of time but now the decryption has been Paused at 42%.

I listed all available options using diskutil apfs and there isn't any option to resume/revert decryption process. I also tried to verify/repair disk option but it is still paused.

I found this command but it is for other file system.

diskutil cs revert /Volumes/title_drive -passphrase

As this file system is new so I was not able to find any helpful material on any site.

Please tell me, how can I resume the decryption process.

I have tried everything online reset nvram, repaired permissions, repaired disk, tried to disable filevault from terminal. none of them worked, I couldn't disable or finish encryption so I couldn't install el capitan. finally I solved the problem like this

1-I created a bootable disk with the DIY option at this link http://lifehacker.com/how-to-burn-os-x-el-capitan-to-a-usb-flash-drive-173342513 3 the el capitan app is already downloaded so I used this.

2-I booted to usb with pressing option key at start up.

3-after language selection I clicked on disk utility

4-I unlocked the disk and while it is selected I clicked the first aid button at top.

At the process it said something about paused encryption and expanding partition. At that point I realized the problem is solved. I restarted the mac regularly and then I saw encrypting instead of paused. after the finished process I was able to install el captain and I was able to get rid of this paused encryption problem.

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Thanks for the screenshot. The reason why decryption is paused is because your MacBook must be plugged into power in order to encrypt or decrypt any kind of drive. Decryption of your hard drive should continue when your MacBook is plugged in.

Hope this helps!

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The process is totally automatic in High Sierra and there is no command to resume the decryption process other than connecting the Mac to power if it's a portable Mac.

The Apples new file system APFS works differently then older file systems HFS+. The detailed guideline along with new feature detail can be found here.

Now, whenever you'll unlock volume the pending/paused encryption/decryption process will start automatically. But there is a condition, the machine (in my case, MacBook Pro) must should be plugged in. So, whenever you'll unplug the decryption process will stop immediately even if the battery is fully charged since this is presumably a maintenance task that shouldn't deplete the battery energy at any time.

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