Master Boot Record Disks Cannot Be Converted to GPT by Means of an Unattended Setup

SYMPTOMS

When you are suppose to use the line of code in an answer file given below which is unattended, a master boot record (MBR) disk is not converted to a GUID partition table (GPT) disk (GUID is stand for globally unique identifier)
[Unattended]
Repartition=Yes

CAUSE

This behavior could have occurred as the preceding line of code which can only converted in to raw disks to GPT disks.

RESOLUTION

If you want to work about this behavior, not only you can make the disk raw but also create the GPT disk before you want to run the unattended Setup. And you can use the Diskpart.efi file effectiveness to make the disk moreover raw or GPT.