Windows installer has encountered an unexpected error installing this package. The error code is 2502.

I've faced with this error during installing FAR manager on Windows 8.1.
The issue has been fixed by executing next steps:

1. Run as administrator cmd.exe.
2. > cd %USERPROFILE%/Downloads
3. > far2.x86.msi

I believe there is a better way to resolve this issue.
I'll share it with you as soon as find it.