Use Diskpart to Change Partition Type?

December 7, 2016

Using Diskpart change partition type is not supported in Windows, you can find how to convert partition type much easier and safer via a third-party software here.

About partition type

“Can I use Diskpart to change partition type and how?”. Before this topic, let’s have a look of partition type because it seems that a lot of people mix up partition type and disk type.

Disk type refers to MBR (Master Boot Record) and GPT (GUID Partition Table). A brand new hard disk can not be used directly until you initialize it to one of these two types. You’re able to create 4 primary partitions or 3 primary partitions plus 1 extended partition on an MBR disk. However, GPT supports up to 128 partitions. Well, even if partitions have been created, there’s still a chance to convert disk between MBR and GPT based on your needs (Please note that GPT doesn’t apply to all computers, please confirm your system in advance).

When it comes to partition type, we’re talking about primary partition and logical partition. Files like bootmgr and ntldr to boot Windows should be saved in a primary partition. Besides, in MS-DOS and earlier versions of Microsoft Windows systems, the first partition (C:) must be a primary partition. Then, about logic partition, actually this concept only exists in MBR disk. In other words, if you’re going to change partition type, make sure your disk is MBR style.

Why change partition type?

As different types of partitions have different features, you may need to change partition type:

  • If you want to create more partitions on an MBR disk which owns 4 primary partitions already, you can set one of primary partitions to extended/logical since an extended partition can hold multiple logical partitions.

  • When there have been 3 primary partitions and 1 extended partition, creating partition from unallocated space will convert the current disk to dynamic one. In this situation, converting one of primary partitions to logical is an ideal method too.

  • It is possible to set up dual boot operating system by changing an existing logical partition if there’s no other primary partition.

While there could be many other reasons as well, now the question is how to change partition type?

How to change partition type?

The fact is that even Windows 10, which has been improved much compared with early versions, doesn't provide features of using Diskpart change partition type. Neither in its Disk Management. By this token, you need a third-party software to help you. AOMEI Partition Assistant, a professional and easy-to-use partition tool applying to all Windows PC systems, could be your best option that can safely change partition type within just a few of clicks:

Step 1: Download, install and launch AOMEI Partition Assistant.

Step 2: All partitions' statue will be displayed on the main interface, including partition type. Right click the one you’re going to change. Select Advanced → Convert to Primary/Logic.

Right Click.jpg

Step 3: In the pop-up window, click OK.

Ok.jpg

Step 4: Afterwards, it comes back to the main interface. Click Apply to execute pending operations.

Apply.jpg

Note:

  • Please don’t convert a boot partition to logical otherwise your computer is likely to stop working.

  • If there are applications running on the partition which you intend to change, AOMEI Partition Assistant will execute the operation in PreOS Mode.

  • The location and the size of the primary partition will be slightly changed after conversion since a logical partition has 63 sectors, bigger than a primary partition.