Many people believe formatting the drive or deleting the file will complete delete information from the drive. Actually that is not so. A real deleting of files on drives is only possible through a complete overwrite of the original files with (meaningless) data. A simple delete as executed by all OSes makes files only non accessible on the OS and application program level (the file names are gone). But the fact is, that the complete contents of all that files are still there, waiting to be completely recovered, at least as long as they are not overwritten by new files. Formatting in most cases will rebuild file allocation data but all information still present on the drive. It means that your confidential information can be easily recovered with data recovery software.
There is only one way to prevent problems with the data you thought was deleted. You need to use wiping solution. Your private photos, passwords, financial records and other confidential documents aren't safe!

• Flash Wiper 3.1
  Many people believe formatting the drive or deleting the file will complete delete information from the drive. Actually that is not so. A real deleting of files on drives is only...

• Digital File Shredder Pro 3.2.1.5
  Permanently erase personal data, shred deleted e-mails and eliminate your Internet and Instant Messenger history with Digital File Shredder Pro while improving your computer?s performance Permanently wipe out confidential files, folders and data from your hard drive Completely remove all traces of your computer and Internet activity Restore valuable hard disk space Works with hard drives, floppies, external drives, pen drives and flash memory

• Smart Data Scrubber 3.1
  Do you know that after you have completely deleted information from your hard drive, it is still there? There are a lot of ways to restore deleted data. Just imagine what could happen if your personal information were used by ill-intentioned people....

• Smart Data Scrubber 3.4
  Do you know that after you have completely deleted information from your hard drive, it is still there? There are a lot of ways to restore deleted data

• PC Disk Eraser 5.7 5.7
  PCDiskEraser enables you to easily, quickly and permanently erase all data that is personal, confidential and critical on your hard drive. It permanently deletes the information by actually overwriting all of the data on your hard drive - never to be recovered - so you can feel confident that sensitive information is completely eliminated.

• FILExtinguisher (PC) 2.0
  FILExtinguisher securely deletes all confidential information

• Data Erasure Tool 3.0.1.5
  Data wiper software permanently erases your personal documents, wash internet history, links of last visited URLs, cache, cookies etc. Disk cleaner tool completely wipes your secret files, folders, private pictures, images, photos, movies, clips...

• Permanent Data Wiper Tool 5.0.1
  Data eraser software permanently deletes temporary files folders remove internet history address bar URL records from hard disk removable media