New
#980
Assuming you have one of the few drives that meets the specs, have you clicked 'Next'? Cliff S's link from earlier provides the answer...
...which is:
So the bottom line is that Pro can create Windows To Go, but only if you also have an Enterprise machine it can copy the files from.Yes, Windows To Go is now available in the Windows 10 Pro Control Panel. It’s there so that you can create Windows To Go media, as you might expect, but you do need a Windows 10 Enterprise image for it to actually work...
There is an unofficial method that is dead simple using wintousb from Windows To Go Creator, Data Recovery, BitLocker Home Edition & PC Utility which works on any version of Windows, even Home.
It is not exactly the same as Windows To Go as WTG has inbuilt protections if drive is accidentally removed before shutting it down whereas wintousb would just probably crash.