Don't understand why a lot of people (when ever new windows is released), asks what works for kms/mak VL, oem or retail. I've been testing every version since NT 6.0 -> NT 10.1 and as so far as long I have image based at VLSC (VOLUME licensing) or OEM. It can activate with any type of licensing retail, oem or VL keys just by clearing the keys with: slmgr /cpky After this command (heck I use it at $OEM$ setup folder for all installs). Any of editions since windows vista (as long originating source is VOLUME or OEM) can be activated with any legit product key to any variant of activation/license. So, what am I missing here? Why do people ask about what license would work with what variants or why do we even have retail/oem/vl licenced dvds in the first place having just dummy key inserted by m$ to patch the job.