I have a 2TB hard drive which has been formatted to be NTFS. I have my Windows 10 machine backed up to it.
I also have a Mac which I would like to back up to it, but I do not want to delete the existing Windows data.
I have created a free space partition in windows using Computer Management -> Disk Management. I now see one Primary Partition which is 1120 GB, and a 732G Unallocated space.
How can I make this Unallocated space become an HFS+ partition?