How to Delete All Partitions on Windows 11

This article explains how you can effectively delete all partitions from your hard drive in Windows 11.

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Generally, the primary reason for deleting a hard drive partition is to clear all data from the drive to generate unallocated space extended to another disk space. 

A hard drive can possess many partitions, and at times, organizing them may be an essential thing to do. However, there are times you may consume the storage on some particular partitions on your Windows 11 hard drive, which results in the partition lack of storage space and hence makes the operating of your computer slower. 

To distribute storage space to your partition that's out of storage, you'll need to delete other partitions or recreate the partition to delete unimportant data and begin afresh with a new partition.

Also, suppose you're upgrading to a new computer or want to set up your computer with a better installation of Windows. In that case, it's necessary to completely delete the partitions on the hard drive to have clean and new partitions for your hard drive. Follow this article guide to see how you can safely and efficiently delete all partitions from your hard drive in Windows 11.

How to Delete All Partitions Windows 11 with Partition Management Software
How to Delete All Partitions Windows 11 with Diskpart in CMD
Bonus Tip: How to Delete EFI (System) Partition in Windows 11

How to Delete All Partitions Windows 11 with Partition Management Software

You can quickly delete unused partitions from the hard disk by utilizing proper partition management software that can effectively delete partitions. A unique partition management software that can perform the task 100% is the EaseUS Partition Master. 

EaseUS Partition Master enables you to delete all partitions on a hard disk at a time with its "Delete All" feature. To make use of this tool, all that's required is for you to download and install EaseUS Partition Master on your computer and activate its complete version to access a sleek partition deleting engagement by following the below steps:

• Run EaseUS Partition Master on your PC.

Note: Ensure you back up all vital information on the chosen partition as once deleted, the data is irrecoverable.

Step 1. Launch EaseUS Partition Master, and click "Partition Manager".

Make sure that you've backed up the important data before deleting any partition on your disk.

Step 2. Select to delete partition or delete all partitions on hard drive.

• Delete single partition: right-click on a partition that you want to delete and choose "Delete".
• Delete all partitions: right-click a hard drive that you want to delete all partitions, and select "Delete All".

Step 3. Click "Yes" to confirm the deletion.

Step 4. Click "Execute xx Task" and then click "Apply" to save the change.

0:00 - 0:26 Delete single volumes; 0:27 - 0:53 Delete all partitions.

Once you've completed the process, you'll receive a clean second-hand disk on your computer to create partitions and utilize the space therein. 

Aside from deleting partitions, EaseUS Partition Master has other excellent all-in-one partition features such as disk clone, create/format partitions, partitions merging, clear data, disk/partition conversion, resize/move partition to resolve low drive space problems, and many more.

How to Delete All Partitions Windows 11 with Diskpart in CMD

Diskpart, a built-in command-line tool in Windows, can be used to control your hard disk and delete partitions. Here’s how to employ this tool to remove all partitions on your hard disk:

• In Windows 11 search box, select command prompt or type cmd.
• Type diskpart inbox and press Enter then, run as administrator.
• Type: list disk and press Enter. The command will list out the available disk on your computer.

• Type select disk + the disk number of the disk containing the to-be deleted partitions) e.g., select disk 2 and hit Enter.
• Type: list partition and press Enter. All partitions in the selected disk will be outlined.
• Type: delete partition and press Enter.
• Type exit to complete the process.

Once the process is completed, you've successfully removed the partitions from the selected disk, and you can repartition the hard disk by making new partitions from the unused space. 

Bonus Tip: How to Delete EFI (System) Partition in Windows 11

EFI partition, also called EFI system partition (ESP), is instantly generated when Windows OS is successfully installed on a GPT disk in your system. It contains four major components: boot loaders, device drivers, data files, and system utilities.

EFI is akin to the interface needed for your computer to boot windows off, and without it, your computer can't boot into windows. Deleting the EFI partition will hinder the installed system from booting, and that's why the EFI system partition is always secured and locked by the Windows OS to prevent accidental deletion. 

However, if you need to delete the EFI system partition, I recommend you use the EPM feature on the EaseUS Partition Master. You'll be asked to create a bootable USB drive to begin, and you can do that with the EaseUS WinPE bootable disk. Here's how to perform the task:

Step 1. Launch EaseUS Partition Master, on the Partition Manager section, right-click on the EFI system partition and choose "Delete".

Step 2. Click "Yes" to confirm the message "Do you want to delete the selected partition?".

Note that this opertion will delete the EFI/UEFI partition, which may cause OS boot issue. Make sure you want to execute the operation.

Step 3. Click "Execute 1 Task" and then "Apply" in the new window to completely remove the EFI system partition.