Windows 10 or Windows 8? Regarding windows 8, its seems you need to purchase sideloading keys in bulk in order to do so, unless you are installing on windows

Windows 10 or Windows 8? Regarding windows 8, its seems you need to purchase sideloading keys in bulk in order to do so, unless you are installing on windows 10 enterprise. If you can provide a method otherwise, that would be big help. Windows 10 seems to be different (no sideloading key required?), but i haven't tried it out or investigated in detail.