I have an old Mac Mini mid 2011 which just serves as my media server, movies, photos etc. The original 512gig drive was having issues so I installed a second copy of OSX on a 1TB HDD which I installed when I first bought the Mini so I could boot the machine up to see what the original drive was doing. Dead drive but no problem everything is backed up and I never save anything to the OS drive anyway. Bought a Crucial MX100 512gig SSD which will help speed her up nicely and installed a fresh copy directly onto the new drive. Now I am stuck as I have two copies of OS X installed and for the life of me I don't know how to remove the installation of OS X on the 1TB drive. Is it as simple as just deleting the root OS X folders?