Why does BootCamp say to reformat my HD as Mac OS Extended (Journaled) when it already is in that format?

Answer 1

I'm never going to install windows on my Mac, but here's a guess. With BootCamp, you have to create two partitions, one for OSX and the other for windows. Correct me if i'm wrong, but when you partition a disk, you have to reformat it completely. So, back up all your files to an external source, install bootcamp and partition your disk, and then put all your stuff back on there.

Answer 2

With all due respect, I'm correcting nathan75932. When you partition a disk, you don't have to format it. In Disk Utility, you click on APPLE SSD TS128E Media in the sidebar, then partition in the menu.

And you click on the +/- symbols at the bottom to add/remove partitions. You can choose what format it is (Mac OS Extended, MS-DOS, ExFat, free space, etc). Sometimes you can't partition a disk, due to the partition map scheme not being GUID; but that's going off topic.

If you use Bootcamp, you don't even have to go to Disk Utility to partition. After it creates your boot disk, it will prompt you to partition the drive (refer to image below).

But I do agree – back up your files, when dealing with any disk-related task.