WinToUSB is the best Windows To Go Creator that allows you to install and run Windows operating system on a USB hard drive or USB flash drive, using an ISO image or CD/DVD drive as the source of installation. Starting from version 2.0, you can clone current Windows OS installation (Windows 7 or later) to a USB drive as a Windows To Go Workspace.
What's new in this version 2.4:
1. Convert Locale Disk to Windows To Go Workspace
2. Convert CD/DVD to ISO image file
3. Improved disk partitioning and formatting algorithms
4. Polish language support
5. Fix other minor bugs