Hello, I'm thinking about getting a 4TB external USB hard drive to hook up to my Netgear Nighthawk router to do both windows and time machine backups. I have a windows PC, a MacBook Pro, and an iMac. I want to make a 2TB partition for the windows box, a 1.5 TB partition for the iMac, and a 500GB partition for the MacBook. Is it possible to do this and have them all back up over the network. If so, how do I need to go about formatting all of these partitions?