@Samuel Johnson
Unfortunately, this forum is dedicated to Atlas as part of HDP stack. Having said that the deployment is managed by Ambari that shields the HDP user or Admin from the complexities in the configuration. The forums you will get for standalone installations are based on Linux OS's ?
If you want to built on Atlas use berkeley-elasticsearch (- Pdist,berkeley-elasticsearch) profile to build and enable you to run Atlas as a stand-alone application. Which means that you should be able to run a quickstart sample and be able to use the web UI.
Here is a forum for Atlas window users
HTH