Deltree

deltree (short for delete tree) is a command line command in Microsoft operating systems that deletes an entire subdirectory of files. It appeared in MS-DOS 6, and was retained throughout all Windows versions based upon MS-DOS, including Windows 95, Windows 98, and Windows Me. (For Windows versions before Windows 95, the presence of deltree depended on the version of the MS-DOS that was already required to be on the machine, which was completely separate from Windows.)