I am a teacher (and as of recently, an IT administrator) at a small private school in the US. I found the ESET Security forum while trying to reach a representative on Saturday. Our Server runs Windows Server 2016, and our devices run anything from Windows 7 to Windows 10. We initially purchased ESET Endpoint Antivirus (Basic), but have upgraded to ESET Endpoint Antivirus Advanced (or Premium, don't remember the exact wording). I have no formal training in IT, and so am learning as I go.