By Dervish / Last Updated September 30, 2021


"Recently I put a Windows 7 hard disk on my XP box, but it has been displayed as "GPT Protective Partition" in Disk Management. I do not know why and how to solve this problem. Is there any good solutions?"

GPT Protective Partition

Reason of "GPT Protective Partition"

As known to many Windows users, GPT hard drive can only support some versions of the Windows NT OS, such as, Windows 2003 64bit, Vista, 2008, Win7 and Win8. On the contrary, the Windows XP does not work With GPT, so that it can not read or access GPT partitions as well. In this case, you can convert the GPT disk to MBR.

Solutions for "GPT Protective Partition"

To change disk partition systle from GPT to MBR, you can choose one betwwen the two methods that will be presented in the following context.

Convert GPT to MBR with Diskpart Command

As a Windows snap-in disk manager, Diskpart Command can deal with many disk troubles. as for this task, it can be completed through the following steps.

Warning: This way will remove all your data and partition structure from the disk. Thus, you should backup files in advance if there are vital data.

1. Click "Start", and then select "Run" option. Input "diskpart" at the prompt.

2. Then, type following commands successively. Press Enter after each command.

  • list disk
  • select disk n (n refers to the disk number of the disk you want to convert)
  • clean (delete all data)
  • convert mbr
  • exit

Convert MBR

After using Diskpart Command, only unallocated space is on your disk, and the disk only can be used after creating some new volumes.

Convert GPT to MBR with AOMEI Partition Assistant without Cleaning Disk

As a professional third-party tool, AOMEI provides the software: AOMEI Partition Assistant Professional Edition, and it has many specially designed features in working out some difficult disk problems. As for the task of "convert GPT to MBR", this magic software can settle it easily and securely. what's more, it has a clear demonstration of how to carry out the operations. 


Step1. Open AOMEI Partition Assistant, and right-click the disk you to change to MBR ad then choose Convert to MBR Disk.

Convert Data Disk to MBR

Step2. Click OK to continue the operation.

OK to MBR Data Disk

Step3. In the pop-up windows, you will preview Disk 2 has been converted into MBR. To perform the operation, click Apply.

Apply to MBR Data Disk

Due to MBR can only support up to 2TB partition size, if one day you have a disk that is larger than 2TB, how can you take full use of the disk space? And now Windows 11 is required UEFI, which means if you want to experience Windows 11, you have to use a GPT disk. Fortunately, AOMEI Partition Assistant Pro can help you convert MBR to GPT without losing any data. Therefore, just download the partition software and achieve the conversion immediately.