Mastering SDelete: Command-Line Secure Wipe Guide

SDelete (Secure Delete) is an official, free Microsoft command-line utility from the Microsoft Sysinternals Suite used to permanently erase files, directories, and free disk space. Traditional Windows deletion only removes the file pointer, leaving the underlying data vulnerable to recovery tools. SDelete prevents this by overwriting disk sectors with random data patterns, adhering to the US Department of Defense clearing and sanitizing standard (DoD 5220.22-M). Core Syntax and Parameters

The core execution structure relies on a simple format:sdelete [-p passes] [-s] [-q] sdelete [-p passes] [-z|-c] [drive letter] SDelete – Sysinternals – Microsoft Learn