EaseUS Partition Master

A simple partition tool to manage disk space in Windows 10

[Tested & Effective] Delete All Partitions on Windows 10/8/7 PC at One Time

Updated by Daisy on Mar 23, 2021
Written by Tracy King

Can I Delete All Partitions Windows 10?

"Can anyone tell me if it's possible to delete all partitions on a Windows PC? I want to fully clean and remove all partitions on my Windows 10 computer and Windows 7 laptop to reinstall Windows OS.

I'm having trouble clearing the system partition from my computer. So is it possible to delete all partitions even including the system partition in Windows 10/8/7? How?"

Are you looking for a simple guide to help you clean and delete all partitions on your Windows PC to make use of all space on the computer HDD or SSD? Here on this page, you'll learn three ways to remove all partitions from disk: automatically delete all partitions at a time with powerful partition manager software, remove all partitions using Disk Management, and delete all partitions on Windows 10 using Diskpart in Command Prompt.  

Tip
If you have important data saved on the computer hard drive or SSD in Windows 10/8/7, back up and extract all data to an external hard drive in advance.

How to Delete All Partitions Windows 10 in 3 Easy Ways

If you are looking for an easy way to delete all partitions at a time on an HDD or SSD in Windows 10, 8, or 7, you'll have three methods to try and remove all partitions on your own. Just follow to see how can you delete all partitions altogether with ease now.

If you prefer an effective and 100% working trick, EaseUS partition manager software - EaseUS Partition Master in Method 1 will help. If you need a free guide, Method 2 with disk management tool and Method 3 with diskpart command lines can be your choices.

Method 1. Delete all partitions at one time with partition manager software

EaseUS partition manager software allows you to delete all partitions from a hard drive at one time with its "Delete All" feature.

All you need is to install EaseUS Partition Master on your PC and activate it into a full version so to gain a smooth partition deleting process with the below guidelines:

Step 1. Run and enter EaseUS Partition Master interface. Here you can right-click on the HDD or SSD disk and select "Delete All".

select delete all

Step 2. Click "OK" to make sure that you want to delete all partitions on the selected disk.

select rhe disk

Step 3. Keep all changes on your computer.

By clicking "OK" you will add a pending operation of all-partitions deletion. Click "Execute Operation" and "Apply" to delete all partitions.

delete all partitions by clicking Apply

After this, you'll get an empty second hard disk or SSD on your PC, and you can create partitions on the disk to make full use of the space by them. Except for deleting partitions, EaseUS Partition Master provides more one-stop disk partition features, such as resize/move the partition to solve low disk space issue, clone disk, merge partitions, create/delete/format partition, wipe data, disk/partition conversion, and more.

Method 2. Delete all partitions Windows 10 with Disk Management

If you don't like using a third-party tool, Windows Disk Management can help you delete partitions from HDD or SSD.  But this tool doesn't let you delete all partitions at once, you can only remove all partitions one by one.

1. Open Disk Management on Windows computer by right-clicking This PC or My Computer and select "Manage".

2. Right-click on the second hard drive or SSD partition and select "Delete Volume".

Delete partitions with Disk Management.

3. Repeat the steps again and again until you've deleted all partitions from the hard drive in Windows 10/8/7 PC. After deletion, all the space on your hard disk drive will be unallocated space. You can create new partitions to start again.  

Method 3. Delete all partitions with Disk Cleanup command line

1. Right-click Start button and select Command Prompt.

2.  Type: diskpart in Command Prompt and hit Enter.

Open DiskPart to remove partitions on second HDD/SSD.

3.Type: list disk and hit Enter.

List disk to delete all partitions.

4. Type: select disk 2 and hit Enter. (Replace 2 with the disk number of your second HDD/SSD.)

Select second disk to clean up so to remove and delete all partitions.

5. Type: clean and hit Enter.

Confirm to delete all partitions on second HDD/SSD.

6. Type: exit to finish the whole process.

After this, you'll get all partitions removed from the hard drive and you can re-partition the hard drive again by creating new partitions with the unallocated space.

How to Delete All Partitions Windows 10, Including the System Partition with OS

As we all know the Windows system doesn't allow users to delete system partition to ensure users can run the computer with a smooth experience. But if you are trying to reinstall a new Windows operating system like Windows 10 on your PC and re-manage your computer space, you'll need to delete all Windows hard drive partitions together with the OS. Then, how to delete all partitions on Windows 10, including the system partition?

To save your time and energy, the best way to do this job is by applying the ultimate EaseUS Partition Master. You can delete all partitions on Windows 10 with the operating system using a  Windows 10 bootable USB drive. 

Step 1. Boot from EaseUS Partition Master bootable USB drive or CD/DVD disc. Learn how to create and access EaseUS bootable disk.

Step 2. Before trying to use the "Delete All..." feature on a system drive, you must delete both the boot partition and system partition resided there in advance. So first, right-click on the boot drive and select "Delete...".

delete all partitions with os step 1

Confirm the message "Are you sure you want to delete the selected partition?" and click "OK".

delete all partitions with os step 2

Step 3. Then, go back and right-click on the system drive as the picture shows and select "Delete...".

delete all partitions with os step 3

Confirm again the warning message and click "OK".

delete all partitions with os step 4

Step 4. After successfully removing the OS partitions, this time right-click on the whole disk and select "Delete All...".

delete all partitions with os step 5

Step 5. Click "OK" to confirm deleting all partitions at once.

delete all partitions with os step 6

Step 6. Finally, to save the changes, click the "Execute (number) Operations" on the top menu and then click "Apply".

delete all partitions with os step 7

Conclusion

In conclusion, we have shown you three ways to delete all partitions on Windows 10/8/7 in this post.

  • EaseUS Partition Master allows you to delete all partitions from a disk at one time. And it still supports deleting system partition in a WinPE environment with a EaseUS Partition Master bootable USB drive.
  • Disk Management can help to delete partitions one by one. When there are many partitions on your disk, this method is not very efficient.
  • Diskpart in CMD can remove all partitions on a hard drive. But we highly recommend that only advanced computer users adopt this approach. Otherwise, any wrong operation may bring damage to your hard drive.

Delete All Partitions Windows 10 FAQs

Go on check the following relevant questions on how to remove all partitions from a hard drive on Windows 10, 8, and 7.

Can I delete all partitions?

It's easy to delete all partitions on a hard drive if it's not the system disk. The simplest way to delete all disk partitions is applying EaseUS partition management software. It provides the Delete All Partitions option to remove all partitions at a time.

Besides, if you want to delete all partitions on a system disk, you can use run EaseUS Partition Master with a bootable USB do make it.

Can I delete all partitions when reinstalling Windows 10?

To ensure a 100% clean Windows 10 install, you need to fully delete all the partitions on the system disk these instead of just formatting them. After deleting all partitions you should be left with some unallocated space. You can delete the primary partition and the system partition with EaseUS Partition Master WinPE bootable disk. Read the content and check details.

How do I unpartition a hard drive in Windows 10?

How do I unpartition a drive? You can unpartition a hard drive and delete the partitions in several ways. Let's say how to delete partitions in Windows 10 with Disk Management:

Step 1. Right-click the Start button and click "Disk Management".

Step 2. Right-click the target partition and choose "Delete Volume".

Step 3. Select "Yes" to start to unpartition and remove partitions from your hard drive.

What is the fastest way to remove all partitions from a drive? 

The fastest way to remove all partitions from a hard drive is using an efficient disk partition tool:

Step 1. Download and run EaseUS Partition Master.

Step 2. Right-click the hard drive you want to remove partitions from, then choose "Delete All".

Step 3. Click "OK" and execute the operation to remove all partitions.

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Updated by Daisy

Daisy is the Senior editor of the writing team for EaseUS. She has been working in EaseUS for over ten years, starting from a technical writer to a team leader of the content group. As a professional author for over 10 years, she writes a lot to help people overcome their tech troubles.

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Written by Tracy King

Tracy joined in EaseUS in 2013 and has been working with EaseUS content team for over 7 years. Being enthusiastic in computing and technology, she writes tech how-to articles and share technical solutions about Windows & Mac data recovery, file/system backup and recovery, partition management and iOS/Android data recovery.

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Product Reviews

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  • I love that the changes you make with EaseUS Partition Master Free aren't immediately applied to the disks. It makes it way easier to play out what will happen after you've made all the changes. I also think the overall look and feel of EaseUS Partition Master Free makes whatever you're doing with your computer's partitions easy.

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  • Partition Master Free can Resize, Move, Merge, Migrate, and Copy disks or partitions; convert to local, change label, defragment, check and explore partition; and much more. A premium upgrade adds free tech support and the ability to resize dynamic volumes.

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  • It won't hot image your drives or align them, but since it's coupled with a partition manager, it allows you do perform many tasks at once, instead of just cloning drives. You can move partitions around, resize them, defragment, and more, along with the other tools you'd expect from a cloning tool.

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All-round disk & partition management software for personal and commercial use. Let it manage your storage drive: resize, format, delete, clone, convert, etc.

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How to Partititon a Hard Drive on Windows 10/8/7

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