WinToUSB (also called Windows To USB) is the best free Windows To Go Creator which allows you to install and run a fully-functional Windows operating system on an external hard drive, USB flash drive or Thunderbolt drive.
WinToUSB's key features include:
Easy-to-use wizard interface that provides step-by-step instructions for creating a Windows To Go USB or Thunderbolt drive.
Creation of Windows To Go from an ISO/WIM/ESD/SWM/VHD/VHDX image file or CD/DVD drive.
Clone currently running Windows OS (Windows 7 or later) to a USB or Thunderbolt drive as a Windows To Go Workspace.
Use of a Non-Enterprise Edition of Windows 11/10/8.1/8/7 to create Windows To Go Workspace.
Support for creating VHD-based/VHDX-based Windows To Go Workspace.
Creation of Windows To Go on Non-Certified Windows To Go USB Drive.
Encrypt Windows To Go with BitLocker to keep your data safe.
Clone Windows between disks with different sector sizes.
Support for creating Windows installation USB drives.
Support for creating bootable WinPE USB drives.
Support for downloading official Windows ISO file from Microsoft.
Windows 7 does not boot on any of my disks. All of them working with Rufus. Don't use this software
Useless for me trying to clone windows 10, WinToUSB kept giving failure messages trying to copy windows to SSD, $30 down the drain
I need to install Windows XP on an older device and WinToUSB version 7.1 will not recognize the XP ISO. The article I read referred to version3.5 but even if I select version 3.5 your web site downloads version 7.1. The device WILL NOT RUN ON ANYTHING NEWER THAN XP.