DiskGenius is full-featured partition manager. It also lets you edit UEFI entries with ease, so if you want to install a different bootloader like Clover, DiskGenius can help set it up quickly.

Dariks Boot and Nuke ("DBAN") is a self-contained boot disk that securely wipes the hard disks of most computers. DBAN will automatically and completely delete the contents of any hard disk that it can detect, which makes it an appropriate utility for bulk or emergency...

Permadelete is a free and open source file shredder, it deletes your files beyond recovery. It's made to be beautiful and easy to use and yet powerful.

O&O SafeErase is a security software designed to provide comprehensive protection against unauthorized access to any confidential data you wish to erase. It is capable of permanently deleting a range of data types, from outdated financial information and email archives to...

SDelete, short for Secure Delete, is a command-line based data destruction tool and can be run from the Command Prompt in Windows 7, Vista, or XP.

Active@ Kill Disk is disk eraser software for secure formatting of hard drives without any possibility of following data recovery.

With Context-Shredder you can destroy your sensitive files. Choose from simple destruction or shredding by Peter Gutmann. Users can create deletion tasks, overwrite available free space or destroy disk drives.

File Shredder is a FREE and powerful application to shred and permanently remove unwanted files from your computer.

BCWipe data wiping software enables you to permanently delete files selectively so that they can never be recovered or undeleted. BCWipe embeds itself within Windows and can be activated from the Explorer FILE Menu OR from the context (right-click) menu OR from BCWipe Task...

EraserDrop Portable is an easy-to-use secure data removal tool. It is a drop target (a floating icon on your desktop) that you can drop files onto to quickly erase them so they can not be recovered. EraserDrop does away with the standard .

CyberShredder is a quick, safe and handy utility that lets you erase confidential files from your computer permanently. Normal file deletion will remove a file's directory entry and allocation table information.

When you normally delete your files in Mac OS X, the operating system is only forgetting where those particular files are placed, while the data still physically remains on the drive. Beginning with Mac OS 10.