How to Delete or Format Any Disk Partition on Windows Using DiskPart (Complete Guide)

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When you need to delete partitions from a hard drive, SSD, USB drive, or other storage device, most Windows users open Disk Management and attempt to remove the partitions manually.

The problem is that some partitions, especially System, EFI, and Recovery partitions, cannot be deleted through Disk Management. The Delete Volume option is often grayed out, leaving many users wondering what to do next.

Fortunately, Windows includes a powerful built-in tool called DiskPart that gives you complete control over disks and partitions. With DiskPart, you can delete protected partitions, wipe entire drives, create new partitions, and format them with the file system of your choice.

In this guide, you’ll learn how to safely use DiskPart to delete partitions, completely wipe a drive, and create a new formatted partition.

Important Warning Before You Begin

DiskPart is a powerful tool.

Unlike Disk Management, DiskPart does not display confirmation prompts before performing destructive actions.

Commands such as:

delete partition

and

clean

Execute immediately.

There is no Undo button.

Before running any command:

  • Verify the correct disk number
  • Verify the disk size
  • Cross-reference with Disk Management
  • Double-check before pressing Enter

Taking an extra 30 seconds to verify the correct disk can prevent accidental data loss.

Step 1: Open DiskPart

Right-click the Start button and select: Terminal (Admin)

or Command Prompt (Admin)

Then launch DiskPart:

diskpart

Press Enter.

The prompt changes to:

DISKPART>

This confirms you’re now working inside the DiskPart environment.

Step 2: List All Connected Disks

To view all storage devices connected to your computer, run:

list disk

Example output:

How to Delete or Format Any Disk Partition on Windows Using DiskPart (Complete Guide)

DiskPart assigns a number to every physical storage device connected to your system.

These numbers correspond to the same disk numbers shown in Disk Management.

How to Identify the Correct Disk

Always identify the disk by:

  • Disk number
  • Storage size
  • Existing partitions

For example:

  • Disk 0 = 953 GB SSD
  • Disk 1 = 4 TB HDD
  • Disk 4 = 29 GB USB drive

If you’re unsure, open Disk Management and compare the sizes shown there.

Never continue until you’re completely certain which disk you want to modify.

Step 3: Select the Target Disk

Once you’ve identified the correct disk:

select disk 1

Replace: 1 with your actual disk number.

DiskPart will confirm: Disk 1 is now the selected disk.

Step 4: View Existing Partitions

To display all partitions on the selected disk:

list partition

Example output:

This allows you to identify exactly which partition you want to remove.

Understanding Partition Types

Primary Partition

A standard data partition.

Usually deleted without restrictions.

System Partition

Contains boot files and startup information.

Protected by Windows.

Recovery Partition

Contains recovery tools and factory restoration files.

Also protected.

These protected partitions often cannot be deleted through Disk Management.

Delete a Specific Partition

To remove a partition:

select partition 1

Replace: 1 with the partition number you want to delete.

Then run:

delete partition

DiskPart immediately removes the partition.

What If the Partition Is Protected?

You may receive an error stating that the partition is protected.

This is common with:

  • EFI partitions
  • System partitions
  • Recovery partitions

In many cases, deleting all partitions using the clean command is the simplest solution.

Verify the Partition Was Removed

Run:

list partition

again.

The deleted partition should no longer appear.

Wipe an Entire Disk Using Clean

If your goal is to completely erase a drive, deleting partitions individually is unnecessary.

Instead, use:

clean

First confirm the correct disk is selected:

select disk 1

Then verify:

list disk

Make sure the asterisk (*) appears next to the correct disk.

Now run:

clean

DiskPart instantly removes:

  • All partitions
  • All volumes
  • The partition table

The entire drive becomes unallocated space.

What Does the Clean Command Actually Do?

The clean command:

  • Removes partition information
  • Makes data inaccessible
  • Returns the disk to an unallocated state

The clean command does not:

  • Securely erase the data
  • Overwrite every sector

Specialized recovery software may still recover information after a standard clean operation.

Clean vs Clean All

For normal drive repurposing:

clean

is sufficient.

For secure disposal before selling or donating a drive:

clean all

This command writes zeros to every sector on the disk.

Benefits:

  • Makes recovery extremely difficult
  • More secure for sensitive data

Downside:

  • Takes significantly longer
  • Large drives may require several hours

Create a New Partition

After deleting partitions or cleaning the disk, you’ll need to create a new partition before using the drive.

Run:

create partition primary

This creates a primary partition using all available space.

Format the Partition

To format the new partition:

NTFS

format fs=ntfs quick label=NewDrive

exFAT

format fs=exfat quick label=NewDrive

Replace: NewDrive with any volume label you prefer.

NTFS vs exFAT

NTFS

Best for:

  • Windows-only systems
  • Internal drives
  • Large files
  • Security permissions

exFAT

Best for:

  • USB drives
  • External drives
  • Windows and macOS compatibility
  • Cross-platform file sharing

If you regularly move the drive between different operating systems, exFAT is often the better choice.

Quick Format vs Full Format

Quick Format

format fs=ntfs quick

Faster.

Does not scan the drive for bad sectors.

Full Format

format fs=ntfs

Slower.

Checks the disk surface for bad sectors.

Recommended for:

  • Older drives
  • Previously problematic drives
  • Used hard disks

Assign a Drive Letter

After formatting, assign a drive letter:

assign letter=G

Replace: G with any available drive letter.

The drive will immediately appear in File Explorer.

Alternative: Use Disk Management

If you prefer a graphical interface, you can stop after running:

clean

Then open Disk Management and use the New Simple Volume Wizard to create and format the partition visually.

See also: Run these 7 commands when your Internet connection stops working

Final Thoughts

DiskPart is one of the most powerful disk management tools included with Windows. It allows you to delete partitions that Disk Management cannot remove, completely wipe drives, create new partitions, and format storage devices without relying on third-party software.

Whether you’re:

  • Removing a dual-boot setup
  • Wiping a drive before reuse
  • Preparing a disk for a new operating system
  • Deleting protected partitions

DiskPart provides complete control.

Just remember the most important rule:

Always verify the correct disk before running any destructive command.

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