Windows 8 appears to work correctly with the latest USB version of VMSpec. I am using the TechNet Professional version of Windows 8 on a Lenovo touchscreen Netbook. Windows 8 runs great on this netbook, and is at least two times faster than the current Windows 7. I have had no trouble with VMSpec using Microsoft's latest operating system. Windows 8 actually lets the old 10" netbook run like it should have ran when it was released with XP.