[Absalute]

Пользую East-Tec Eraser 2004 которая способна затирать свободное место тем алгоритмом ,которым задаешь.

Protect your data and privacy and remove all evidence of your computer and online activity with East-Tec Eraser 2004. Eraser goes beyond U.S. Department of Defense standards for the permanent erasure of digital information and easily removes every trace of sensitive data from your computer. Completely destroy information stored without your knowledge or approval: Internet history, Web pages and pictures from sites visited on the Internet, unwanted cookies, chatroom conversations, deleted e-mail messages, temporary files, the Windows swap file, the Recycle Bin, previously deleted files, valuable corporate trade secrets, business plans, personal files, photos or confidential letters, etc. East-Tec Eraser 2004 offers full support for popular browsers (Internet Explorer, Netscape Navigator, America Online, MSN Explorer, Opera), for Peer2Peer applications (Kazaa, Kazaa Lite, iMesh, Napster, Morpheus, Direct Connect, Limewire, Shareaza, etc.), and for other popular programs such as Windows Media Player, RealPlayer, Yahoo Messenger, ICQ, etc. Eraser has an intuitive interface and wizards that guide you through all the necessary steps needed to protect your privacy and sensitive information. Other features include support for custom privacy needs, user-defined erasure methods, command-line parameters, integration with Windows Explorer, and password protection.

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Еще можно использовать
East-Tec Sanitizer 2004 3.0 Full Version

Don't give away sensitive information, valuable corporate trade secrets, business plans, personal files and letters, or traces of Internet or newsgroup activity with the old computers that you or your company resells, donates, reassigns to different departments or removes from operation. Deleting all the files or even formatting the hard disk is not enough to stop people to restore information using basic recovery programs. East-Tec Sanitizer 2004 however removes all traces of data from the computer hard disk, by overwriting and destroying beyond recovery every sector and bit of information. Data is removed according to U.S. Department of Defense standards or custom user security levels. East-Tec Sanitizer 2004 can be operated from a floppy disk, CD or DVD to sanitize any drive or partition from the computer, regardless of the file system or the operating system. Whether you want to prevent identity theft, protect your privacy or stop competitors from stealing your sensitive information, East-Tec Sanitizer 2004 offers the solution.

Keywords: Eraser, erase, wipe, delete, disk, drive, data, destroy, DoD, NAVSO, sanitizer, security, sensitive, privacy, secrets, overwrite, destroy, beyond, recovery, utility