The Free Edition is real freeware without any obligation to buy. It is intended for temporary and free use cases. For more frequent or professional use, we recommend you to use one of the higher editions, as they offer higher speed, broader hardware support and further options for regular and professional usage.
Setup for Windows will install all components to your PC: HDShredder/W (Windows executable), HDShredder/S (self-booting program), HDShredder manual (PDF) and the Boot-Setup for creating an HDShredder bootable medium (USB key or CD/DVD).
If you don't run Windows (XP or higher): The Universal Download contains the same components as the Setup for Windows, but in addition as individual components plus an ISO image for use with other operating systems.
For more frequent or professional use, we recommend you to use one of the higher editions of HDShredder. They offer you extended special options for many areas of use.