WinToUSB (also known as Windows To USB) is the best free Windows To Go (WTG) creator that allows you to install and run fully functional Windows on an external hard drive, USB flash drive, or Thunderbolt drive. It’s so simple and efficient, with just 3 steps and a few minutes, you can create your first portable Windows 10/8/7 or Windows Server directly from an ISO, WIM, ESD, SWM, VHD, VHDX or CD / DVD. Or you can clone your existing Windows installation to a USB or Thunderbolt drive like portable Windows. WinToUSB also supports creating a Windows installation USB stick from Windows 10/8/7 and Windows Server installation ISO, with which you can easily install Windows from a USB key. If you want to upgrade a WTG workspace to Windows 10 October 2020 Update (Windows 10 20H2), go to Windows To Go Upgrader. WinToUSB allows you to install and run fully functional Windows on an external HDD / SSD, USB flash drive, or Thunderbolt drive, which means you can take the portable Windows drive anywhere and use it on any computer.
Use any version of Windows 10/8/7 and Windows Server to create Windows To Go workspace
Create Windows To Go from an ISO, WIM, ESD, SWM, VHD (X) image file or CD / DVD drive
Clone the existing Windows installation to a USB or Thunderbolt drive like portable Windows
Creating Windows To Go on an uncertified Windows To Go drive
Hot-clone Windows without restarting the source computer to be cloned
Create a BitLocker-encrypted Windows To Go workspace
Support for creating a Windows To Go workspace based on VHD / VHDX