Summit's Hard Disk Scrubber is a Free secure delete program designed to help you permanently destroy sensitive data from your PC. Use Hard Disk Scrubber to overwrite free space on your Windows drives, or to permanently delete files so that they can no longer be recoverred.
Scrubber Parts
There are 2 basic parts to the Hard Disk Scrubber. The first is the Hard Disk Free Space Scrubbing option, and the second is File Scrubbing (or File Shredding).
When you scrub a hard disks free space you overwrite unused space that may have been previously in use by other files. Files that you deleted using the Recycle Bin, or through Windows can easily be recovered or undeleted using the proper utilities. The hard disk scrubber will ensure that these utilities can no longer restore files that were previously deleted on your system.
File scrubbing is a way to securely delete existing files on your computer. If you have files that you want to delete permanently then you can use this utility to get rid of the files so that they can no longer be accessed. Using this utility will ensure that undelete utilities cannot access the data that was deleted using this program.
File scrubbing can be used during your every day deleting of sensitive documents and files, while disk scrubbing can be used less often. You may scrub the disk if you used other means of deleting sensitive files.
If you are getting rid of your computer you should scrub the free space. Even if you have formatted the drive and re-installed the OS, old data can still be recovered!! Make sure that you overwrite your free space before getting rid of any computer, otherwise you leave yourself open to identity theft and other problems resulting from your old data winding up in the hands of an unauthorized party.