Please make sure that your system fulfills these requirements before installing V-Ray.

ProcessorIntel Pentium IV or compatible processor with SSE2 support
To use Embree you need CPU which supports SSE4.2 instruction set.
RAM4 GB RAM and 4 GB swap minimum – recommended 8 GB or more RAM, 8 GB or more swap file
Operating systemWindows XP, Windows Vista, Windows 7, Windows 8, 64 bit versions only
SoftimageSoftimage 2012 or later, 64 bit versions only
USB portRequired for hardware lock, preferably USB 2.0
TCP/IPOnly IPv4 is supported. IPv6 is currently not supported.

Warning

V-Ray 3.0 requires V-Ray License server 3.0!