Windows DiskPart is a powerful command-line tool that you can use to manage partitions on your hard drive. However, sometimes you might encounter errors when trying to use it.

This guide explains in detail how to re-partition a hard drive without losing your data. However, you must be cautious when using the DISKPART tool on dynamic disks.

Merge or Delete an OEM Partition in Windows Windows Disk Management tool will not let you delete/merge the OEM partition. You will have to use the built-in command line tool called Diskpart.

To delete the entire disk, you can use software such as Super FDisk, the built in Windows Disk Administrator or the Windows "Clean All" command in the "Diskpart" utility.

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

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Another option is to take advantage of the new Diskpart.exe utility that comes standard with Windows Server 2003. This utility allows you to create, delete, and manage partitions on your hard drive.