How to Delete All Partitions on Windows 11

User Case

Usually, the main reason for deleting a hard drive partition is to wipe out all data on the drive and generate unallocated space to extend it into another disk area.

Hard drives can have multiple partitions, and organizing them can be necessary at times. However, you might run out of storage space on a particular partition of your Windows 11 hard drive, causing the computer to slow down.

To allocate storage to a partition that has no available space, you need to delete other partitions or recreate the partition, deleting unimportant data, and start from the new partition.

Moreover, if you plan to upgrade to a new computer or want to install a better Windows on your PC, it's necessary to completely delete the partitions on the hard drive to create a clean new partition for the disk. Follow this guide to learn how to safely and efficiently delete all partitions on a hard drive in Windows 11.

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

How to delete all partitions using partition management software in Windows 11? In Windows 11, if you wish to delete all partitions to reorganize your hard drive space or for a fresh system installation, you can achieve this with the help of a partition management tool. Here's how to delete all partitions using a partition management software: 1. **Choose a partition manager**: First, select a reliable partition management tool such as tools Partition Master, AOMEI Partition Assistant, or DiskGenius. These tools offer both free and paid versions, so choose according to your needs. 2. **Download and install**: Visit the official website of the chosen software, download the latest version, and follow the instructions to install it on your Windows 11 computer. 3. **Run the software**: After installation, double-click the desktop shortcut to launch the partition management software. You might need to run it with administrator privileges. 4. **View disk partitions**: The software will automatically detect and display your hard drives and partition information. You'll see the size, type, and status of each partition. 5. **Select the partition to delete**: Find the partition you want to delete, typically the primary partition containing the C drive. Make sure you have backed up all important data, as this action is irreversible. 6. **Delete the partition**: - For tools Partition Master: Select the target partition, click "Delete Partition" or "Format Partition," then confirm the action. - For AOMEI Partition Assistant: Right-click the partition you want to delete, choose "Delete Partition" or "Format Partition," then click "Apply." - For DiskGenius: Select the partition, click "Disk" from the menu bar, then "Delete Partition" or "Quick Format," and confirm the operation. 7. **Delete remaining partitions**: Repeat step 6 until all desired partitions are deleted. 8. **Save changes**: After completing all deletion operations, click the "Execute Operations" or "Apply" button in the software interface. The program will start the deletion process. Be patient, as this may take some time, especially for larger hard drives. 9. **Confirm and restart**: The software will prompt you to confirm the action. After verifying, click "OK." Your system will automatically restart and complete the changes. Please note that deleting partitions will result in permanent data loss, so back up important files beforehand. Also, make sure you understand what you're doing to avoid accidentally deleting the wrong partition.

With the right partition management software, you can quickly remove unneeded partitions from your hard drive. A unique partition manager that can do this task 100% safely is tools Partition Master.

"tools Partition Master" allows you to delete all partitions on your hard drive at once using its "Wipe & Clean Drive" feature. To use this tool, follow these steps after downloading and installing "tools Partition Master" on your computer and activating its full version: 1. **Launch the Software**: Start tools Partition Master. 2. **View Disk Layout**: The program will display a graphical representation of your disk partitions. 3. **Select the Disk**: Identify the hard drive from which you want to delete all partitions. 4. **Choose "Wipe & Clean Drive"**: Right-click on the disk and select "Wipe & Clean Drive" or "Delete All Partitions" from the context menu. 5. **Confirmation Prompt**: A warning message will appear, asking for confirmation before proceeding with the deletion. Read the message carefully and ensure that you have selected the correct disk. 6. **Proceed with Caution**: If you're sure you want to proceed, click "OK" or "Yes" to continue. Be aware that this action is irreversible and will result in the loss of all data on the selected disk. 7. **Wait for the Process to Finish**: The tool will then begin erasing all partitions on the chosen disk. This may take some time depending on the size of the disk. 8. **Restart Your Computer**: After the process is complete, restart your computer for the changes to take effect. Remember that deleting partitions will erase all data, so make sure to back up any important files before proceeding.

Run the Partition Master tool on your computer.

Note: Make sure you back up all important information on the selected partition, because the data will be lost and cannot be recovered once it is deleted.

Step 1. Launch Partition Master and click on “Partition Manager”.

Before deleting any partitions on a disk, make sure that you have backed up important data.

Step 2: Choose to delete a partition on the hard drive or delete all partitions.

• Delete a partition: Right-click the partition you want to delete and select "Delete." • Delete all partitions: Right-click the hard drive where you want to delete all partitions and select "Delete All."

Step 3: Click "OK" to confirm the deletion.

4. Click on "Run xx as Task", then click "Apply" to save the changes.

0:00 - 0:26 Remove a single volume; 0:27 - 0:53 Remove all partitions.

When you're done, you'll have a clean, second-hand hard drive that you can partition and use for storage on your computer.

Aside from deleting partitions, the Partition Master tool has other great all-in-one partition features such as disk cloning, creating/formating partitions, merging partitions, wiping data, converting disks/partitions, resizing/moving partitions to solve low disk space problems, and more.

How to use Diskpart in CMD to delete all partitions on Windows 11? To delete all partitions on Windows 11 using Diskpart in Command Prompt (CMD), follow these steps: 1. **Run CMD as an administrator:** - Press `Win + X` and choose "Command Prompt (Admin)" or "Windows PowerShell (Admin). 2. **Start the Diskpart tool:** In the CMD window, type the following command and press `Enter`: ``` diskpart ``` 3. **List all disks:** At the Diskpart prompt, enter this command and press `Enter`: ``` list disk ``` This will display all disks and their numbers on your system. 4. **Select the disk to work with:** Note the number of the disk you want to clean up (e.g., `Disk 0`) and then type: ``` select disk ``` Replace `` with the number of your disk. 5. **List all partitions on the disk:** Type the following command and press `Enter`: ``` list partition ``` This will show all partitions on the selected disk and their numbers. 6. **Delete each partition:** For each partition on the disk, do the following: - First, note the number of the partition you want to delete. - Then, input: ``` select partition ``` Replace `` with the partition number. - Next, type: ``` delete partition override ``` This will delete the selected partition. Repeat this process for all partitions. 7. **Confirm the action:** After deleting all partitions, you may be prompted to delete the MBR (Master Boot Record) or GPT (GUID Partition Table). If the disk was previously MBR, type `convert gpt`; if it was GPT, no conversion is needed. Then, type `exit` twice to close Diskpart and CMD. Please note that this will permanently remove all data from the disk, so make sure to back up important files before proceeding.

The built-in command-line tool Diskpart can be used to manage disks and delete partitions. Here's how to delete all partitions on a hard drive using this utility:

In the Windows 11 search box, select Command Prompt or type cmd.
• Type diskpart and press Enter, then run it as Administrator.
• Type list disk and press Enter. This command will list the disks available on your computer.

• Type select disk + the number of the disk that contains the partition to be deleted (for example, select disk 2), and then press Enter.
• Type list partition, and then press Enter. All partitions on the selected disk are listed.
• Type delete partition, and then press Enter.
• Type exit to complete the process.

Once the process is finished, you will have successfully deleted the partition from the selected disk and can use the unallocated space to re-partition the hard drive.

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

An EFI partition, also known as an EFI System Partition (ESP), is automatically created when the Windows operating system is successfully installed on a GPT disk in a system. It contains four main components: a boot loader, device drivers, data files, and system utilities.

EFI is like an interface that allows your computer to boot Windows; without it, your PC won't be able to start Windows. Deleting the EFI partition will disrupt the boot process of the installed system, which is why Windows operating systems always protect and lock the EFI System Partition to prevent accidental deletion.

However, if you need to delete the EFI System Partition, I recommend using the EPM function in the Partition Master tool. First, the system will prompt you to create a bootable USB drive, which can be done using the WinPE boot disk utility. Here are the steps to accomplish this task:

Step 1: Launch AOMEI Partition Assistant, right-click the ESP partition in the "Partition Management" window and select "Delete."

2. Click “Yes” to confirm the deletion of the selected disk partition.

Note that this will remove the EFI/UEFI partition, which might cause issues with booting your operating system. Make sure you want to proceed.

Step 3. Click on "Perform 1 task", and then in the new window click "Apply" to completely remove the EFI System Partition.