I'm needing to install Windows via bootcamp, but cannot partition the drive. When trying to I get the following error: "Partition failed with the error: This core storage operation is not allowed on a sparse logical volume group". It seems I also have the dreaded FileVault bug, where it is stuck on paused, waiting for my power adapter to be plugged in all the time. Is there a way round this without doing a full re-install of the machine? I'm not near my backup HDD at the moment, so it's out of the question.