I assume you developed and tested the program on a Windows 7 x64 machine, running LabVIEW 2015, 32-bit. When you installed LabVIEW on the Windows 7 machine, you also installed the LabVIEW 2015 32-bit Run Time System.
You should be able to run the same executable on a Windows 10 x64 machine, provided it has the LabVIEW 2015 32-bit Run Time System installed. You should be able to install a Run Time System on the Windows 10 machine, and then the Executable should run. You might also need Drivers. One way to "port" the Executable is to build an Installer, which (as I understand it) looks up and configures the additional files needed to run the Executable on a Remote PC.
Bob Schor