Microsoft
Windows
OSProcessorDisk SpaceRAMDVD-Rom
CD-Rom
Web Access
Windows 8 32/64 bit Pentium NR NR Yes Yes(*)
Windows 7 32/64 bit Pentium NR NR Yes Yes(*)
Windows Vista 32/64 bit  Pentium NR NR Yes Yes(*)
Windows XP 32/64 bit  Pentium NR NR Yes Yes(*)

(*) Internet connection required to activate the software.

 @Risk is compatible with all Microsoft Excel 2003 to 2013.