SolidWorks detects Windows 7 as Vista

Hello!

I can't install SolidWorks 2014 on  Windows 7 becouse it is detected by SolidWorks as Windows Vista.

SolidWorks message:

"SolidWorks 2014 is not supported on the Windows Vista operating system and will not be installed. Check the SolidWorks System Requirements for supported operating systems."

How can i fix it?

SolidworksGeneral