Accoring to
http://www.microsoft.com/en-us/download/details.aspx?id=5555
Windows 8.1 is not supported:
Windows 7, Windows Server 2003 R2 (32-Bit x86), Windows Server 2003 Service Pack 2, Windows Server 2008 R2, Windows Server 2008 Service Pack 2, Windows Vista Service Pack 2, Windows XP Service Pack 3
•Windows Vista with Service Pack 2 or later (all editions except Starter Edition)
•Windows 7
•Windows Server 2003 with Service Pack 2 or later (all editions)
•Windows Server 2003 R2 or later (all editions)
•Windows Server 2008 with Service Pack 2 or later
•Windows Server 2008 R2
•Windows XP with Service Pack 3 (all editions except Starter Edition)
Consider using VN in Hyper-V environment.
Regards
Milos