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 2016/2012/2008 without using a CD/DVD or USB drive. With this All-in-One Microsoft Windows Deployment Tool, you can easily reinstall Microsoft Windows, install Microsoft Windows onto disks other than the one where your Microsoft Windows operating system is installed, or clone existing Windows OS installation (Windows vista or later) to other disk. Furthermore, you can use it to create a Windows installation USB containing all your Windows installation ISO files (including Windows 10/8.1/8/7/vista & Windows Server 2016/2012/2008, both 64 & 32 bits), then you can install Windows 10/8.1/8/7/vista & Windows Server 2016/2012/2008 from the same USB drive on both BIOS and UEFI computers. 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 operating system between disks with different sector sizes. Hot clone Windows without restarting the clone source computer. 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/UEFI.