WinToHDD is a free (for home use) tool that allows you to install Windows directly from ISO, WIM, ESD, SWM, VHD and VHDX files without the need to use CD/DVD, USB flash drive, etc. The program is equipped with the functions of reinstalling the system on the disk on which it is already installed and carrying out the so-called clean installation. In both cases, a disk image in one of the supported formats containing the Windows Vista/7/8/8.1/10 installer is required (the commercial version additionally supports server editions).

The entire operation is based on a wizard that guides the user through the entire process of installing the operating environment. Further features of this small tool are cloning the system and creating USB storage devices with multiple Windows installers (for BIOS and UEFI computers). While the second option does not need to be translated, the first one is designed to transfer an existing Windows installation to a new HDD or SSD.