How to Delete the OEM Partition in Windows 11/10 [2024 Update]

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When you purchase a new Dell, Lenovo, or HP computer, you might notice that almost every one of them comes with an OEM partition. So what is an OEM partition, and is it safe to delete the OEM partition?

If you're looking for a way to delete the OEM partition in Windows 11/10/8/7, this article is for you. You'll find a safe method to successfully remove the OEM partition from your computer:

What is the Healthy OEM Partition in Windows 11/10?

In this section, you will learn how to:

1. What is an OEM partition?
2. Is it safe to delete the OEM partition?
3. What will happen if I delete the OEM partition?

An OEM Partition is designed for system recovery or factory reset. It allows users to quickly restore the system to its original state in case of system failures or crashes. This partition is typically found in computers from brands like Dell, Lenovo, or HP.

An OEM partition is also called a recovery partition. You can use an OEM partition to restore your laptop or desktop to its factory settings.

Is it safe to delete the healthy OEM partition?

An OEM partition is created by the computer manufacturer and contains some of their software or a one-click factory reset setting. It takes up a significant amount of disk space but isn't very practical. So, yes, it's safe to delete Healthy (OEM Partition) without causing any issues with your PC.

You can delete the OEM partition when you have a system image backup and are running low on disk space. However, it's not recommended to delete the OEM volume because this partition helps restore your system to its factory settings in case of operating system failure.

What happens if I delete the OEM partition?

As mentioned above, the OEM partition is used to allow users to restore the Windows OS to its factory settings. Thus, if you delete this partition, you will not be able to recover the factory settings.

However, if you have a Windows installation CD or have created Windows media, you can also get the same recovery options by simply booting from the Windows 10 disc or USB drive when you have a startup problem.

Can I delete the OEM partition? Not recommended! In fact, we don't recommend deleting the OEM partition, especially when it's corrupted, as this will lead to more issues.

How do I delete the healthy OEM partition?

"I have a Dell laptop that I've been using for two years, and now I'm running out of hard drive space. So, I need to figure out ways to free up some space to enhance its performance. While checking the device, I noticed an idle partition called Healthy (OEM Partition) that takes up 14.75 GB of space. I'm not sure what it is."

“When I go to Disk Management and right click the partition, I only see Help option but not Delete. How can I remove the OEM partition?”

Unable to Delete OEM Partition in Disk Management

The description implies that the Windows Disk Management utility does not support the deletion of an OEM partition. So, the question arises: how can you remove the "Healthy (OEM Partition)"?

**Two Methods to Remove the OEM Partition in Windows 11/10/8/7:** 1. **Using Disk Management Tool:** 1. Press `Win + X` and choose "Disk Management." 2. In the Disk Management window, locate the OEM partition, usually labeled as "Recovery" or "Reserved." 3. Right-click on the OEM partition and select "Delete Volume." 4. Confirm the deletion and wait for the system to free up space. 2. **Using Command Prompt:** 1. Press `Win + X` and then choose "A" or "Command Prompt (Admin)." 2. Type the following command and press Enter: ``` diskpart ``` 3. A new command prompt window will open. Type the following command and press Enter: ``` list disk ``` 4. Identify your hard drive number (usually 0 or 1), then type: ``` select disk ``` 5. Type: ``` list partition ``` 6. Locate the number of the OEM partition and type: ``` select partition ``` 7. Finally, type: ``` delete partition override ``` 8. Confirm the deletion. Please note that removing the OEM partition may affect your computer's recovery functionality. Make sure you understand the consequences and back up important data before proceeding.

Next, we will show you two methods to delete the OEM partition in Windows 11/10/8/7:

• #1. Use a Third-Party Partition Manager - Like the Partition Master tool
• #2. Use Diskpart

Note: If you're new to Windows, let the built-in disk partition tool assist you with Method 1. If you're familiar with using Diskpart, follow the steps in Method 2. Let's discuss them in detail now.

Method 1: Delete the OEM Partition with Partition Master [Easiest]

Best for: Windows users of all stripes, especially novices.

To tackle this issue simply and efficiently, we recommend trying out the Partition Master Tool, an ultimate partition manager that allows you to organize your disk space effortlessly. With it, you can quickly delete, format, hide, or even wipe partitions. Additionally, it offers advanced features like cloning/copying partitions and merging partitions to cater to more requirements.

Now, download and use this user-friendly partition manager to easily delete the OEM partition in Windows 11/10/8/7 with simple steps.

Step 1: Launch AOMEI Partition Assistant and click "Manage Partition".

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

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

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

Step 3: Click OK to confirm the removal.

Step 4: Click Run Task xx, and then click Apply to save the changes.

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

Method 2: Delete the OEM Partition with Diskpart [Free]

Best for: Experienced professional Windows users.

Due to its non-graphical interface, DiskPart is a command-line utility that can be hard for the average user to understand and use. While using DiskPart to delete an OEM partition is free, making a mistake can lead to serious issues with your PC.

So, if you're not familiar with the Windows command prompt, don't try this method. To make things easier for yourself, go back to Method 1. If you still want to try this, follow each step carefully:

Step 1: Press “Windows + R” keys to open the Run dialog box, type diskpart, and then click “OK” to open the black Command Prompt window.

Step 2: Type list disk to see all the disks on your computer.

Step 3. Type select disk n, where "n" is the number of the disk you want to work with.

Step 4: Type list partition to list all the volumes on the hard disk.

5. Type select partition n to choose the partition you want to delete, where "n" is the number of the volume.

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

Step 7: When you see the message “The selected partition has been successfully deleted,” type exit to close all windows.

You should then be able to use the free space on the disk where the OEM partition was.

Conclusions

On this page, we explain what an OEM partition is, whether it's safe to delete the OEM partition, and how to remove it using both the Disk Management utility and DiskPart.

While you can delete the OEM partition, we don't recommend doing so if you want to be able to reset your computer to factory settings. If you have more questions about the OEM partition, check out the frequently asked questions below.

People also have questions about OEM partitions.

In addition to deleting the OEM partition, you might have other concerns about it. Check the answers below to see if they address your questions.

1. Should I repartition?

In addition to the OEM partition, your computer may also have a Recovery Partition created by Windows when the system was installed. You can view this in Disk Management.

A Recovery Partition is a special partition on the system hard drive used to restore the system to its factory settings in case of issues. It takes up about 500 MB of space. You can safely delete it using either of the above methods to free up space without any adverse effects.

2. Can I recover the deleted OEM partition?

As with any regular partition, you can recover an OEM partition after deleting it. However, you can't use any built-in, free Windows tools to do this.

To recover the OEM partition, you will need to turn to a third-party professional partition management tool, such as Partition Master, and use its Partition Recovery feature to recover the partition and even save the data at one time.

3. How do I expand the OEM partition?

If the OEM partition is full, you can easily extend it using the "Resize/Move Partition" feature in the Partition Master tool. For a step-by-step guide, please refer to this link for assistance: 6 Ways to Expand Partition.

If there is unallocated space next to the OEM partition, you can also use Disk Management to extend it.