How to Delete OEM Partition in Windows 10/8/7 [2021 Updated]

Tracy King updated on Nov 04, 2020 to Partition Master | How-to Articles

When you purchase a new Dell, Lenovo, or HP compuer, you may find that almost every computer contains a partition called OEM partition. So what is OEM partition and is it safe to delete an OEM partition?

If you are looking for a way to delete OEM partition on Windows 10/8/7, follow this page, you'll get a secure method to remove OEM partition from your computer successfully:

What Is Healthy OEM Partition in Windows 10
How Do I Delete a Healthy OEM Partition
Method 1. Delete OEM Partition with EaseUS Partition Master [Easiest]
Method 2. Delete OEM Partition with Diskpart [Free]

What Is Healthy OEM Partition in Windows 10

In this part, you'll learn: 1. What is OEM partition; 2. Is it safe to delete OEM partition; 3. What happens if I delete OEM partition.

OEM partition is designed for system recovery or factory restore. It allows users to easily and quickly restore the system to the original state when system failure or system crash occurs. This partition usually comes with Dell, Lenovo, or HP computer.

The OEM partition is also known as a recovery partition. With the OEM partition, you can use it to set a laptop or desktop back to factory settings.

how to deleted OEM partition

Is It Safe to Delete Healthy OEM Partition?

OEM partitions are created by computer suppliers, which include some manufacturers' software or one-click factory restore settings. It takes up a lot of disk space and is not very useful. So the answer is Yes, it is safe for you to delete Healthy (OEM Partition)s without causing any PC issue. 

What Happens If I Delete OEM Partition

As introduced, that OEM is used for users to perform factory settings, restoring Windows OS to its original state. Therefore, if you delete this partition, you won't be able to restore the factory settings.

However, if you have the Windows installation CD or Windows creation media, you can also get to the same recovery features by simply booting off a Windows 10 CD or memory stick if you ever do have a problem booting up.

Should you delete the OEM reserved partition? No! As a matter of fact, we don't suggest you delete the OEM partition especially when it gets damaged. The reason is that more problems will come about.

How Do I Delete a Healthy OEM Partition

"I have a Dell laptop for two years, and now the hard drive is running in low disk space. So I need to find a way to free up some space to get better performance. When checking the device, I notice that there is an empty partition, named Healthy (OEM Partition), occupying 14.75 GB. I don't know what it is exactly.

When I open Disk Management and right-click on the partition, I only see the Help option without the Delete choice. How can I remove the OEM partition?"

Unable to delete OEM partition in Disk Manamgement

Windows Disk Management tool doesn't support removing the OEM partition, as you can tell from the description of the scenario. Then a problem comes out. How can you delete Healthy (OEM Partition)?

Delete OEM Partition in Windows 10/8/7 in Two Ways:

In the following, we will show you two ways to delete OEM partition in Windows 10/8/7:

  1. #1. Use a third-party partition manager software - EaseUS Partition Master
  2. #2. Use Diskpart

Note that if you are a Windows beginner, let EaseUS Partition Master help in Method 1. If you are experienced in using Diskpart, follow steps in Method 2. Now, let's discuss it in detail.

Method 1. Delete OEM Partition with EaseUS Partition Master [Easiest]

Best for: All levels of Windows users, specially designed for beginners.

For an easy and effective solution, we recommend you try EaseUS Partition Master, an ultimate partition manager that makes it effortless to organize your disk space. You can use it to delete, format, hide, and even wipe partition quickly. Furthermore, it also offers some advanced features, like cloning/copying partition and merging partitions, to fulfill more needs.

Now, download and use this user-friendly partition manager to delete the OEM partition in Windows 10/8/7 as easy as 1-2-3. 

Download Now

 Windows 10 is supported

If you saved important data in the partition which you want to delete, move and save those data to another secure location in advance.

Step 1: Select partition to delete

On EaseUS Partition Master, right-click on the hard drive partition which you want to delete and select "Delete".

Select parittion to delete

Step 2: Confirm the deletion

Click "OK" to confirm that you want to delete the selected partition.

Confirm to delete partition

Step 3: Execute to delete the partition

Click the "Execute Operation" button at the top corner and keep all changes by clicking "Apply".

Complete the deleting process

Method 2. Delete OEM Partition with Diskpart [Free]

Best for: Experienced and professional Windows users.

As a command-line utility, DiskPart is difficult for average users to understand and use due to its non-graphical interface. Although it's free to delete OEM partition using DiskPart, however, if you commit a mistake, a serious problem may occur to your PC.

Therefore, if you are not very familiar with Windows command lines, don't try it. For an easier solution, revert to Method 1. If you still want to try this method, follow each step carefully:

Step 1. Press "Windows + R" keys to open the run dialogue box, enter: diskpart, and click "OK" to open a black command prompt window.

Step 2. Type list disk to display all the disks of your computer.

Step 3. Type select disk n to identify which disk you need to work with. Here "n" stands for the disk number.

Step 4. Type list partition to display all the volumes on the hard drive.

Step 5. Type select partition n to identify which partition you want to remove. Here n stands for the volume number.

Step 6. Type delete partition override to remove the OEM partition.

Delete OEM partition using Diskpart command

Step 7. Type: exit to close the windows when you receive the message says, DiskPart successfully deleted the selected partition".

After this, you should be able to use the free space on your disk after deleting the OEM partition.


On this page, we explained what is an OEM partition, is it safe to delete an OEM partition, and how to delete an OEM partition in two ways - using EaseUS partition manager software and DiskPart.

Although OEM partition is deletable, however, we don't suggest you delete it if you still want to use it to perform factory resetting on your computer. If you still have some questions about OEM partition, check the questions and answers listed below.

People Also Ask About OEM Partition

Except for deleting OEM Healthy Partition, you may still have some other concerns about this partition. Check out the answers below, you may get your problem resolved.

1. Do I need the recovery partition?

Besides OEM partition, you may also have a recovery partition on your computer created by Windows when installing the system. You can check it out in Disk Management.

The recovery partition is a special partition on system hard drive and is used to restore the system to factory settings in case of any system issue. It occupies about 500 MB. You can delete it with the two solutions above for freeing space without any negative effect. 

2. Can I recover deleted OEM partition?

Like an ordinary partition, when you delete an OEM partition, you can still recover it. However, you cannot recover it using Windows built-in free tools.

To recover an OEM partition, you'll need to turn to a third-party professional partition manager software for help, for example, EaseUS Partition Master. You can use its partition recovery feature to undelete the partition and even restore the saved data at one time.

3. How do I extend OEM partition?

If the OEM partition gets full, you can use the Resize/move feature in EaseUS Partition Master to extend the partition with ease. For a step-by-step guide, refer to this link for help: 6 Ways to Extend Partition.

If you have unallocated space next to the OEM partition, you can also extend the OEM partition using Disk Management.

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Frequently Asked Questions

Why Choose EaseUS Partition Master?

"I've used Partition Master Professional many times to create, delete, format, move, rename, and resize partitions."PCWorld

"Partitioning tools have come a very long since the days of complicated command line utilities and EASEUS Partition Master is one of the most advanced programs available."TECH ADVISOR

"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."Lifewire

Will the "Migrate OS" feature transfer the Windows system files only or the whole C drive?

To ensure that the migrated system will boot normally, the Migrate OS feature will transfer all the files in the system and the boot partitions. Generally, the boot partition is the C drive so the transfer will include all the files in C.

Does EaseUS Partition Master license apply to multiple computers?

The license of Partition Master Professional and Server editions can be used on 1 computer only, while that for for the Technician and Unlimited editions can be used on multiple machines.

What is the difference between EaseUS Partition Master Trial version and the Free version?

Free is for home users only, with most basic functions available such as partition resize and clone. While trial can help you understand how this product works and test what a full license can do on a business or server OS machine.

Will it cause any data loss after resizing the partition in EaseUS Partition Master?

Generally, it will not cause any data loss or boot issue by resizing a partition. However, in order to protect your data, we suggest that you backup the partition before resizing, in case of any unexpected situations such as power outages, computer hardware failures, etc. You can use EaseUS Todo Backup to backup the partition and its trial version is fully functioned for 30 days.

What should I prepare before resizing the partition?

On the partition that is going to be operated, there might be some files being occupied by other programs. To ensure a successful operation, we suggest that you close all the unnecessary software before resizing that partition. Otherwise, EaseUS Partition Master will detect the partition being locked by the other software and require a reboot to resize the partition under boot mode.

About EaseUS Partition Master

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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