Turn Off FileVault - Decryption paused

You are going to have to resolve your power issue which most likely will require a hardware repair of some sort. There is no way to abort the encrypting or decrypting process once it begins.

If you don't care about the data on this drive, then you can just perform a clean install of macOS by erasing the whole physical drive (Intel Macs only) followed by reinstalling macOS & restoring from a backup.

What is the exact model of this Mac and version of macOS? This is usually very important information to have when asking for assistance online. You can get this information by clicking the Apple menu and selecting "About This Mac".

For anyone else finding this thread....do not try to disable Filevault to troubleshoot any issues. It is very rare that Filevault is the reason for any issues. Most times whatever the real issue is, will cause Filevault not to finish decrypting. A drive in a partially encrypted or decrypted state means that Disk Utility First Aid is no available to repair the file system and data recovery apps are not able to work when the file system is in a mixed state (being half encrypted & half decrypted). If the drive has a hardware issue, then decrypting a failing hard drive will just make things even worse than they were previously.

RVMGH wrote:

• I am requested to connect power adapter to resume decryption. Unfortunately every time I connect, my computer crashes. To restart and use my Macbook I have to disconnect the computer from the power adapter.

Consequently:

I can't finish the decryption process

• I can't use Time machine

• I can't reinstall the system

How can I stop Decryption process?

I have tried 'sudo fdesteup disable' on Terminal application. I obtain following message: FileVault was not disabled (2).

Thanks for help and suggestions

You do not say if this is a one to one correlation(?)

or there were issues before you initiated the decryption.. ?

What exact macOS is this?

what exact Mac is this?

Internal SSD?

OEM SSD or third party upgrade?

what is the output from Terminal, copy & paste:

/usr/bin/fdesetup status -extended -verbose

Just curious:

Did you initiate the File Vault decryption process “normally” from settings and simply run out of battery? (as decrypting DOES usually take “quite a while”)

Clearly having a “partially” decrypted disk is not an enviable state in which to find oneself. 🫣

Re: “…decrypting a failing hard drive will just make things even worse … “

Wise words.

I recently needed to decrypt a “with user data” FileVault volume; I was almost afraid to breathe during the decryption and subsequent encryption processes …

… knowing that it’s an “all in commitment” w/o much recourse if any issues were to arise.