HD Encryption Duration

Question

HD Encryption Duration

HI,

I've recently dusted down my 2012 macbook pro and completely cleaned the hard drive and reinstalled the MacOS to start 'fresh'. However, I can't update the OS until the FileVault finishes the encryption.

This is taking a very long time, (geather than 6 hours) which I dont understand why as my hard drive is empty following the clean.

Any ideas? I have no need to actually encrypt the computer so if there was a way to cancel it I would be interested as to allow me to complete the OS update.

thanks

MacBook Pro 13", macOS 10.15

Posted on Mar 3, 2020 2:55 AM

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Answer 1

BobHarris

Level 9

56,825 points

Mar 3, 2020 4:34 AM in response to JamesDinsdale

FileVault does "Whole" disk encryption. Free space is also encrypted. Every block of the disk is encrypted.

FileVault status can be obtained via an Applications -> Utilities -> Terminal session

fdesetup status

FileVault is On.

Encryption in progress: Percent completed = 44.48

diskutil cs list | grep 'Conversion Progress'

Conversion Progress: 44%

Conversion Progress: Optimizing 48%

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Answer 2

dominic23

Level 10

84,018 points

Mar 3, 2020 4:16 AM in response to JamesDinsdale

Quote:

Turn off FileVault encryption on Mac

When you turn off FileVault, encryption is turned off and the contents of your Mac are decrypted. The decrypting could take a while, depending on how much information you have stored. However, you can still use your Mac to do other tasks while the information is being decrypted.

https://support.apple.com/guide/mac-help/turn-off-filevault-encryption-on-mac-mchlp2560/mac

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