What’s GPT partition style?
GPT (GUID Partition Table) is the standard for the layout of the partition table on a
physical hard drive. The GPT based disk has some great benefits over MBR (Master
Bootable Record) disk, for example, it support up to 128 primary partitions, its
data structure are well defined and that helps detect data corruption easier, and
also improve the odds of successful data recovery when hard drives are damaged or
have bad sectors. But sometimes there is no necessity of GPT, such as when your hard
drive with capacity smaller than 2TB, then you can remove GPT partition style, also
you can remove GPT partition to solve other problems sometimes.
Why need to remove GPT Partition style?
You may need to install or re-install Windows on your computer, probably when you
want to do a clean install or when your machine has a crash on startup. However, you
meet another issue when you choose partition to install Windows and error
information occurs as “ Windows cannot be installed to this disk. The selected
disk is of GPT partition style”.
Yes, the problem is caused by GPT based disk. When installing Windows on
UEFI-based computers using Windows Setup. Your hard drive partition style must be
set up to support UEFI mode. you receive such an error message, because your
computer is booted in UEFI mode, but your hard drive is not configured for UEFI
mode. Here, removing GPT partition style is a solution, and this is also helpful in
other situations. Anyway, we’ll show to how to remove GPT partition style in
How to remove GPT partition style?
1. Go to Command Prompt. You can also find it in the Windows Installation
2. Input “diskpart” in the command line.
3. Input “list disk” to see all your disks and find the GPT styled disk.
The GPT based disk is marked with asterisk icon in the last column Gpt.
4. Choose the disk (disk 1, for example) you want to remove GPT partition style
by tying “select disk 1”.
5. Input “clean” to clean the disk.
Then you can input “convert mbr” to convert GPT into MBR. Or you
can head back to the Disk Management, right click the drive and select “Initialize
Disk” to make it an MBR disk. Finally, you can go ahead and install
Note: Make sure you backup data
needed on the GPT partition before cleaning, because it will remove all contents of
disk and start the partitioning over from scratch.
A better way to solve problem
In above situation, GPT is not able to install Windows, so you need to remove GPT
partition and then change disk as MBR. Actually, AOMEI Partition Assistant
combine the two operations into one to help you convert GPT to MBR directly. This
will be very easy for you to solve problem.
1. Launch AOMEI Partition
Assistant Professional Edition.
2. Right click the GPT disk (here is disk 2) and choose “Convert to MBR”
3. Click “OK” to continue.
4. Now you can preview the result that disk 2 has been converted into MBR. Click
As you see, it’s so convenient to convert GPT to MBR with AOMEI Partition Assistant.
In this way, you can avoid the annoyance to remove GPT Partition style via Diskpart
and then initialize disk to MBR. Besides, you don’t need to worry data loss
while converting since it doesn’t ask to delete anything and protects data well