How to Delete ALL Partition

Notes: This operation will delete all partitions on the hard disk. The data in the partition will keep on residing on the hard disk, it can only be made accessible by the Undelete partition tool (e.g. Partition Table Doctor).

Erase MBR will delete all partitions on the hard disk.

Note: If you deleted partitions and want to recover your original data, we recommend that you can use Partition Table Doctor to rebuild partition table, or use file recovery software, such as EASEUS Data Recovery Wizard to recover files.

See:

Create Partition
Format Partition
Delete Partition
Delete Extended Partition