I have Windows 8 Pro x64. I recently installed a 3 TB HDD and I want to set three different partitions; one for documents, one for music, and one for videos. As I go into computer management I can see the computer recognizes the HDD however in the visual display I can only create two partitions so the third is colored black and says it is "unallocated". When I right click on the unallocated space the only thing I can click on is properties which does not seem to help me now. Anyone have any suggestions??