When you install Bitnami RubyStack on Windows with a recommended settings, this will automatically start at windows startup.When you testing different server application this can be conflict when you start other application.
Stopping an application on startup is easy, just follow this simple step.
STEP 1
Go to Windows start menu and search services.msc.
STEP 2
Change all Startup Type of all application with a Name containing rubystack to Manual. In my case, this are rubystackApache, rubystackMySQL, rubystackPostgreSQL.
That's it! Now you're BitNami RubyStack services are not included on startup.