How to Install Ruby on Rails 5 on Windows 7/8/10 ( Manually ) How to install ruby on rails on windows 7, windows 8, windows 8.1, and windows 10. This video shows how to install rails 5.1.3 manually on windows 7 /8/10 Using DevKit 64 bit Ruby 2.3.3 - 64 bit Rails 5.1.3 Bundler 1.15.