How do I copy files in a windows runner? Shell says /bin/bash...?

I’m just getting started with gitlab and my application is very basic. All I want to do at this point is have the runner do a git pull/fetch to a specific cloned repository on my staging/testing webserver when I push changes to the development branch. Thanks in advance for any help you can offer. I’m going to be moving to docker soon but need to get something working to show the boss

This is a windows environment. The runner is registered and jobs are firing, but they are failing saying the folder doesn’t exist.

gitlab-ci-yml:

staging:
  stage: deploy
  script:
  - cd \dev\theRepo
  - git fetch
  only:
  - Development

And why does the runner say bin/bash? It’s a windows machine and the toml file says the shell should be powershell…

/bin/bash: line 84: powershell: command not found

bump!