Description by the Publisher
WinToUSB is a free software 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.
WinToUSB's key features include:
Easy-to-use wizard interface that provides step-by-step instructions for installing Windows on a USB hard drive or USB flash drive.
Install Windows from an ISO image or CD/DVD drive.
Support for Windows NT 6.x OS family (Vista/7/8/8.1/2008/2008 R2/2012/2012 R2).
Use any edition of Windows 8/8.1 to create Windows To Go USB drive.
Support for MBR and GPT disk layouts.
Don't need install WAIK (Windows Automated Installation Kit) or WADK (Windows Assessment and Deployment Kit).
Windows Vista/7/2008/2008 R2 does not have built-in USB 3.0 support, so Windows Vista/7/2008 (R2) will have to be booted from a USB 2.0 port.
USB flash drives are very slow. It takes a long time to install and run Windows from a USB flash drive, highly recommend using a USB hard disk.
Windows To Go drives can be booted on different computers, so you can carry it to anywhere and use it on any computer.Windows 7 is not completely portable. You may have activation and driver problems when booting on different computers.
Windows XP or later (32/64-bit).
Intel Pentium processor.
256MB of available RAM (512MB or more recommended).
10MB of free space on your hard drive.
800x600 graphic device (higher resolution recommended).
Limitations in the Downloadable Version
Unique Product ID: PID-0100489DEA5A
Unique Publisher ID: BID-E20072614329