Removes any and all partition or volume formatting from the disk with focus.

For examples of how this command can be used, see Examples.


clean [all]


Parameter Description


Specifies that each and every sector on the disk is set to zero, which completely deletes all data contained on the disk.


  • On master boot record (MBR) disks, only the MBR partitioning information and hidden sector information are overwritten.

  • On GUID Partition Table (GPT) disks, the GPT partitioning information, including the Protective MBR, is overwritten. There is no hidden sector information.

  • A disk must be selected for this operation to succeed. Use the select disk command to select a disk and shift the focus to it.


To remove all formatting from the selected disk, type:


Additional references