Disabling FileVault 2 protection

The only way to disable FileVault 2 protection is manually on the Mac computer. You cannot disable it by disabling the Enable FileVault 2 group policy.

You can disable FileVault 2 protection through the Security & Privacy System Preference, or by issuing commands in the Terminal application — view one or the other of the two sets of instructions that follow.

To disable FileVault 2 protection by using Security & Privacy preferences

  1. On the Mac computer, open System Preferences > Security & Privacy and click the FileVault tab.
  2. Click the padlock and enter authentication information to unlock System Preferences.
  3. Click Turn Off FileVault.
  4. Click the padlock to secure the changes.
  5. Restart the Mac computer.

The disk is no longer encrypted and all authorized users, not just FileVault-authorized users, should be visible on the log on screen.

To disable FileVault 2 protection by issuing Terminal commands

  1. On the Mac computer, open the Terminal application.
  2. Enter the following command:
    sudo fdesetup disable
  3. Enter the root password when prompted.

  4. Enter the password for the user account that is authorized to lock or unlock the disk.

    This is the password for the user who you assigned in Active Directory to manage the Mac OS X computer.

  5. Restart the Mac computer.

The disk is no longer encrypted and all authorized users, not just FileVault-authorized users, should be visible on the log on screen.