After that, you can select the data spacing option: 1. If you want to wipe only free space choose the Wipe Free Space Only option, and 2. if you want to wipe full disk space then select the Wipe Total Space option.
After that, you can select the data spacing option: 1. If you want to wipe only free space choose the Wipe Free Space Only option, and 2. if you want to wipe full disk space then select the Wipe Total Space option.