Using DiskPart to clean and format a disk partition doesn't have to be hard. Just follow these simple steps.

And second, you can use a Vista DVD (or a Windows Server 2008 DVD or a Windows PE 2.x CD) and use DISKPART SHRINK to shrink disk volumes on earlier versions of Windows such as Windows Server 2003 ...

DiskPart is a handy command-line utility from Microsoft that lets you manage both internal and external storage devices on your PC. You can use it to easily remove write protection from a USB drive.

You can resize a Partition even if Disk Management fails using DISKPART and FSUTIL command-line tools for Disk Management in Windows 11/10.