title: Uninstalling Ruby to go to an older version
body: <p>I'm trying to learn Ruby On Rails, and found I can't really use Ruby 2.2.2 because Nokogiri doesn't support it on Windows yet.</p>
  
  <p>How do I roll back Ruby to an older version so I can develop on an older framework while I wait for Nokogiri to come up with a product for Windows and Ruby 2.2.2?</p>
  
  <p>What is the best way to uninstall it so I don't have bits hanging around that might cause issues?</p>
  
  <p>This is in response to my question: "<a href="https://stackoverflow.com/questions/32036630/error-installing-nokogiri-in-a-ruby-on-rails-application/32043063#32043063">Error installing &quot;nokogiri&quot; in a Ruby on Rails application?</a>"</p>