How can I divide one partition into two in Windows 10

DiskPart is a powerful command-line disk partition tool built into the Windows operating system. It provides users and administrators with advanced tools to manage disks, partitions, and volumes directly from the Command Prompt or PowerShell. Introduced with Windows XP and included in all subsequent versions of Windows, DiskPart offers more granular control over storage devices than the standard graphical Disk Management tool.

DiskPart operates by entering a command-line environment where each command must be explicitly typed. Before executing most commands, the user must first select a disk, partition, or volume to work with. This makes DiskPart both flexible and potentially risky if used improperly, as incorrect commands can lead to data loss.

DiskPart gives you more control over partitioning using commands. You can easily use diskpart to split or divide one partition into two on any Windows OS.

list disk  
select disk X  
list partition  
select partition Y  
shrink desired=XXXX  
create partition primary size=YYYY  
format fs=ntfs quick  
assign letter=Z

✅ Best for advanced users who prefer command-line control when it comes to divide partitions in Windows 10 or Windows 11.