Unable to install on windows

I am unable to install Exercism on windows laptop.
When I try to configure it with CMD, I get a message saying:
The program or feature “??\C:\Exercism\exercism.exe” cannot start or run due to incompatibility with 64-bit versions of Windows. Please contact the software vendor to ask if a 64-bit Windows compatible version is available.
Can someone provide me with the 64-bit version please?

That page has install instructions as well as links to both the 32 and 64 bit Windows executable.