Still not sure if even possible or practical, which is why I try asking here to experts. What I have in mind is a "magical" USB stick for everything: either booting live Windows/Linux OSs -Linux live distributions and live versions of Windows such as recent Hiren's Boot CD-, and installing full Windows/Linux stuff, such as Windows 10 itself, Office, and of course Linux distributions. I already read about Rufus, YUMI and Unetbootin; first 2 are for Windows only, and Unetbootin only supports Linux distributions. I also heard a "rumor" that this could be done with GNU dd, but I couldn't find complete docs around internet about how one would do this. So in summary, what I have in mind, could it be possible and/or practical? Or is it that Windows USB boot sticks can only be made with the Windows media creation tool? Thanks beforehand.