Follow those steps, actually, I have installed Ruby on Rails to many windows machine using these steps.
Step 1: Download Git BASH as the BASH emulation behaves just like the "git" command in LINUX and UNIX environments.
Step 1.1: Download and install latest NodeJS from here and check the NodeJS version
$ node -v #=> v6.11.5 # or something like this
Step 2: Download the ruby latest version here and install it in your directory. Check the Ruby version
$ ruby -v #=> ruby 2.3.1p112 (2016-04-26 revision 54768) [x64-mingw32] # or something like this
Step 3: Download Devkit here take the suitable one for matching your windows bit like 32 or 64 bit
Step 4: Create a devkit folder inside Ruby directory that means where created a default directory after installing ruby software, something like this
disk (:C) or (:D)/Ruby25/devkit/
Step 5: Extract the DevKit file inside the
Step 6: Open your GIT BASH inside the
devkit folder and run this two commands
$ ruby dk.rb init $ ruby dk.rb install
if above command running properly then done.
Step 7: Now you can run rails command for installing inside ruby folder
$ gem install rails
Step 8: Check the Rails version
$ rails -v #=> Rails 5.0.6
if till now all are steps is ok? that's it, now run rails command and create a rails project, like
$ rails new project create create README.md create Rakefile create config.ru create .gitignore create Gemfile create app create app/assets/config/manifest.js ............