TIP: You can resize a Partition even if Disk Management fails using DISKPART and FSUTIL command-line tools for Disk Management. Diskpart runs in its own space, so when you run the command ...
The first section shows you how to do this using the Disk Management tool with an easy-to-use GUI, and then we’ll move on to how to partition your hard drive using the recommended DISKPART tool.
On Windows OS, managing hard disks and their partitions can sometimes become challenging, especially with the limited and somewhat confusing functionality of the official Windows Disk Management tool.
You don't need any special software to partition a drive; you can do it with the Disk Management utility in Windows. When the formatting is complete, you will have a new partition on the hard drive.