Where to set Path

I am trying to get my first rails app on heroku, and am getting errors related to not being able to find git. Following different questions and answers lead me to the instructions to s开发者_JAVA百科et the PATH environment variable to run git under cmd on windows with rails, which will apparently resolve the issue.

The original answer leading me to this is here - How to run Ruby and GIT commands in one place on Windows

However, I can't figure out where/how to set the PATH environment variable, as instructed. I can't seem to find a file in my rails app or ruby directory.

Am i going about this all wrong?

---

Did you actually install git? Did you read the official Getting Started with Heroku on Windows?