1. christo45's Avatar
    I cannot turn on Filevault as I get an error message as follows:

    Filevault can't be turned on for the disk Mac SSD
    Some disk formats don't support the recovery partition required by encryption. To use encryption reinstall this version of OS X on a reformatted disk.

    I'm using macOS Sierra
    My SSD has a capacity of 239.2 GB but only 59.13GB is available.
    Could this error be because there is insufficient space to do the encryption?
    03-01-2017 10:42 AM
  2. bamf-hacker's Avatar
    Yes you need to free up space to encrypt the drive. Encryption adds overhead to the data and will use a bit more space.
    03-01-2017 11:35 AM

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