I am using this with Windows Server 2012 R2 and running Hyper-V on it.  All of that is supported.  Drivers for hardware are all signed / certified Windows drivers.  I am using it in Raid1.  It runs warm, but duh...  it has a quad core i7 in it...For those who don't realize, the i7 processor is a Quad Core.  This is the whole reason I bought this model.This thing is awesome!