Windows - diskpart

How to Delete an OEM Partition?

Question: There’s an ‘OEM Partition’ in my hard drive, which I would like to remove to gain more space, but there’s no way I can delete it. I opened Disk Management and right-clicked on the partition, all that came up was a help icon, no delete key. What should I do to get rid of OEM partition?

OEM partitions are usually made by many manufacturers such as Dell, Lenovo or HP, and mostly they contain functions about system recovery or factory restore data. If you don’t plan to restore the device to factory setting any more, you can choose to delete the OEM partitions to extend more space.

However, Windows built-in graphical user-interface Disk Management tool cannot delete the OEM partition. In order to delete the OEM partition you are going to need to use a command line tool called Diskpart.

A brief introduction about Diskpart

Diskpart is a kind of tool that manages hard disk and partitions. It has many functions such as create partition, delete partition, merge (extend) partition, etc. in theory, it totally can replace some third-party software such as partition magician and so on. In addition, it has some functions partition magician this production cannot run, such as setting dynamic disk, mirrored volumes, etc, and it doesn’t need to restart computer to take effect after setting partition. it sounds convenient and time-saving. But, diskpart have to run in command prompt. If you determine to delete OEM partitions, you can make it according to the following way below to do it.

Step-by-step tutorial to follow

Step1: Hit “Windows Key” + “R” to open the run dialogue box and type “diskpart” and hit “OK” to open a black command prompt window.

Step2: Type “list disk” to display all the disks of your computer.

Step3: Type “select disk n”. Here n stands for the disk you want to work well.

Step4: Type “list partition” to display all the volumes on the hard drive.

Step5: Type “select partition n”. Here n stands for the volume you want to delete.

Step6: Type “delete partition override” to get rid of the volume.

Step7: Type “exit” to close the window.

Once you do that you have removed the OEM partition on the drive.

Does this exists A better way to delete OEM partition

Diskpart.exe is a Windows built-in disk management tool which provides more functions than GUI Disk Management. But to some people, it seems that it is not convenient to operate, even  a great number of people don’t understand the commands above. Although it has more advantages over some third-party software, Due to its non-graphical interface, this tool is hard for common users to use. diskpart is more suited for people who have professional knowledge about computer and programme rather than common users. In this condition, some third-party software are easier and safer to operate. you don’t need to learn professional computer terminology or search for specified commands. some software offer user freeware to manage disk and partition., such as AOMEI Partition Assistant. In internet, you can search for that and download for free.

How to delete OEM partition with third-party software?

In internet, some software should be paid for users. Considering users ‘benefits, you can totally download freeware. AOMEI Partition Assistant is a kind of freeware that has many functions to manage disk and partition. Comparing with diskpart, it can make you more easy and safe to manage partition. there is steps below to teach you how to delete partition.
Step 1: Download, install and launch AOMEI Partition Assistant standard edition. The disk and partitions in computer will be detected by this software, and shown in the interface of software. Right-click partition you want to delete, and select “Delete partition” function in function bar.

Select “Delete Partition”

Step 2:  Select the delete method in the following dialog, there are two options:
Delete partition quickly: the data which has been deleted is recoverable if you choose this option
Delete partition and wipe all data to prevent data recovery: AOMEI Partition Assistant will delete the partition and wipe all data on it. The data which has been deleted will not be recovered by any data recovery software, so use with caution.
Choose whichever one according to your needs, after that click OK to continue.

 Select method to delete

 Step3: You can see the preview effect in the interface, but that’s preview effect. To save all changes, you don’t forget to click “Apply” button.

 
Click Apply

 You see, comparing with diskpart, you can finish deleting OEM partition in three steps. It is really useful and convenient for users.

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