SecureShredder is a free Windows-based file deletion utility that permanently erases files, folders, partitions, logical drives, and unused disk space by overwriting data with random binary data multiple times, making recovery theoretically impossible. Unlike standard file deletion, which leaves data recoverable until the disk space is overwritten, SecureShredder uses shredding algorithms to ensure data cannot be retrieved by file recovery tools. Key capabilities include: - Support for large disks (over 4TB) - Detection and display of all connected volumes, partitions, hard disks, external USB disks, and USB flash cards - Erasure of individual files, entire folders, partitions, logical drives, and unused disk space - Parallel erasing of multiple disks simultaneously with independent erase/wipe sessions - Two overwriting algorithms: a simple method (quick, pseudorandom data overwrite) and an advanced method (DoD 5220.22-M standard, slower but more thorough) - An integrated File Eraser component for single or multiple file/folder wiping The tool is available in two license tiers: - Standard License: single installation, intended for individuals or small businesses; not for use in rendering services to third parties - Business License: three installations, intended for small or medium businesses SecureShredder is compatible with Windows 7, 8, 8.1, and 10. It is offered as freeware with a free download available directly from SecureData's website.