By using the Microsoft Platform SDK APIs, you can also develop your own tools to access the GPT disk partitions at their primitive levels. How are GPT disks managed in Windows? GPT and MBR disks are managed the same way. Disks can be formatted as GPT or MBR by using the Diskpart.exe command prompt utility or by using the Disk Administrator snap-in. Volumes can be created on both GPT and MBR disks,