If it reads Turn Off, then FileVault is enabled on your Mac, and you don’t need to do anything. Otherwise, if it says Turn On, you need to enable it manually. Enable FileVault on Your Mac.

Once FileVault is set up and working, you should notice it in only two ways. First, if you like to login automatically, FileVault turns that setting off (which makes sense from a security point of ...

To turn off automatic login on your FileVault 2-encrypted Mac, go to System Preferences > Users & Groups > Login Options and make sure that "Off" is selected from the drop-down.

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When decryption is complete, you can return to the FileVault tab and click Turn On FileVault. At the Recovery Key prompt, choose the “Create a recovery key” option and write the key down.

Apple has released OS X Lion 10.7.4. The update includes performance improvements as well as a bunch of fixes, including the FileVault bug that was recently widely covered across the Web.