In this example, the system disk is a C disk, the move disk is E, and the F disk is a mounted win 8 mirror.
The first step, press Win+x, in the pop-up menu, click the command Prompt (Admin), and then type and run DiskPart;
The second step, type list disk, and then you can see your computer on the disks, which DISK1 is their own u disk;
In the third step, enter the command in the following image, format the U disk and activate the partition, then assign the letter to E;
The fourth step, enter the command in the following figure, by using the DISM program to release the contents of the Install.wim file in the mounted F disk to E disk;
In the final step, enter BCDboot e:windows/s e:/F All to enable the partition to boot.
That way, Windows to go is done, and now it's just a matter of restarting the system and making the simple final settings available.
Note:
The WIN8 Enterprise Edition has its own graphical windows to go Creation feature that you can create without using the command line