1. Wipe hard drive: The feature will delete all partitions and erase hard drive to anti-recovery. You can select a hard drive and right-click, and choose "Wipe Hard Drive…" option.
2. Wipe partition: Any existing partition can be erased permanently. You can select a partition that you need to erase, right click it and choose "Wipe…" option.
3. Wipe unallocated space: If there are some unallocated spaces on hard drive, you can also erase them by right clicking the unallocated partition, choosing "Advanced -> Wipe Data".
4. To save all the changes, click “Apply”> “Proceed”
You can specify the number of times to wipe from 1 to 100.