I have concurrent installs of Vista, Win7, and Win8, all running on the same machine. And yes, I have flashed my boards to the most recent BIOSes, since WINDOWS 8 doesn't work correctly without new BIOS. :shadedshu Oh, and that's been tried on nearly every board I have ever reviewed in the past 16 months. That said, could be a problem with OEM boxes, who knows. Not retail off-the-shelf boards though, for sure. I would have been SCREAMING about it. I still have boards that don't work right with Windows8, however. The list gets smaller each week, but one specific OEM has many many issues, or has sent be a shit-tonne of faulty boards.