core storage is unable to begin volume reversion

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core storage is unable to begin volume reversion

Hello there.

I have an external hard drive, and in finder I right clikced it to encrypt it.

Now I am trying to decrpyt it by opening it up in finder and its gives me Core Storage is unable to begin volume reversion error or sometimes : Unable to decrypt the Core Storage logical volume

I tried decrypting it in finder, in disk utlities, I tried earsing the hd completly, and multiple restarts on my computer.

My hd is pretty much useless at this point. I cannot view my content stored on that drive, copy or paste anything on and to that drive. It takes a long time for the content to load into the drive also before I can see it.

Does anyone have a solution for this?

MacBook Pro, OS X Mountain Lion (10.8.3)

Posted on Jun 27, 2013 7:17 AM

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Answer 1

arcadiomac Author

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Jun 29, 2013 6:40 AM in response to arcadiomac

HELP!!!!

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Answer 2

Visy

Level 1

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Sep 27, 2013 9:25 AM in response to arcadiomac

I am having the same problem on the internal hard drive of my iMac on OS X 10.8.5. My computer is experiencing various issues so I wanted to run features of some utilities (i.e. Tech Tools Pro 6 & Disk Warrior) that cannot be utilized when FileVault is turned on. It is my start-up drive and I'm using an administrator account. I have approximately 18% free disk space on the drive.

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Answer 3

swtsvn

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Mar 20, 2015 2:45 PM in response to arcadiomac

I also have the same issue. In my case the system hangs during normal login, and stays there forever in about 40% of login progress. I am not able to access any file, or do anthing in the Mac Book pro.

I have Yosemite 10.10.2 installed.

I went into safemode and tried to turn off filevault, in attempts of fixing the hang. But I get "Core Storage is unable to begin volume reversion". Anyone any ideas on how to fix this and turn off filevault successfully?

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