Bubble FreeSpace Shredder
The 2.5 version of Bubble FreeSpace Shredder is provided as a free download on our website. This free program is a product of Benjamin Lutz. The software is included in Security Tools.
From the developer:
The "Bubble Free Space Shredder" is a useful tool which check the files that you have deleted, remain permanently deleted.
You may want to check out more software, such as Bubble Ghost, Bubble Dock or abylon SHREDDER, which might be related to Bubble FreeSpace Shredder.