(Windows Command) diskpart

Differences Between MBR and GPT Disks:

• MBR disks are supported (readable) by all Windows operating systems.
  • GPT disks are only supported (readable) by Windows server 2003 SP1 +, XP 64-bit, Vista, Windows 7, Windows Server 2008.
• MBR disks use the standard BIOS partition table.
  • GPT disks use UEFI.
• MBR disks supports up to 2TB per single partition.
  • GPT disks supports up to 256TB per single partition in Windows.
• MBR disks supports up to 4 Primary partitions or 3 Primary partitions and 1 Extended partition with up to 128 logical volumes in the extended partition.
  • GPT disks supports up to 128 Primary partitions.
• Removable disks are MBR disks by default.
• Removable disks cannot be converted into a GPT disk

 

Disk - Clean and Clean All with Diskpart Command

Clean :  Removes any and all partitions or volume formatting from the disk with focus.

-> The first and last 1MB of the disk are zeroed.

Clean al :  Specifies tha teach and every byte\sector on the disk is set to zero,which completly deletes all data contained on the disk. 

-> On MBR(master boot record) disks, only the MBR partitioning infomration and hidden sector inormation are overwritten. On GPT( GUID partition table disks, the GPT partitioning information, including the Protecteive MBR , is overwritten.