WinToHDD is a free, handy and useful software which allows you to install or reinstall Microsoft Windows 10/8.1/8/7/vista & Windows Server 2019/2016/2012/2008 without using a CD/DVD or USB drive.
WinToHDD's key features include:
Reinstall Windows directly from ISO, WIM, ESD without using a CD/DVD or USB drive.
Install Windows onto a second hard drive directly from ISO, WIM, ESD without using a CD/DVD or USB drive.
Clone Windows to another disk without reinstalling Windows, apps.
Clone Windows operating system between disks with different sector sizes.
Encrypt Windows partition with BitLocker when installing or cloning Windows.
Install any version of Windows 10/8/7/Vista & Windows Server (64 & 32 bits) from same USB drive on both BIOS and UEFI computers.
Fully Compatible with GPT and UEFI.