As soon as done, plug the bootable USB into a system where you want windowz install Windows Restart the computer.
Download the Windows 10 ISO image file from the download section. Minimum for all Windows 10 editions 1 GHz processor or higher. The water mark is a indication that you are on a beta version and all Insider builds contain it, cannot be officially removed aall you return to a general release version of W Not supported by MS, but there is a hack, at link below: you could try this but be aware of further issues.