In windows Platform
Step 1: Installation of Ruby
If you already have installed ruby in your pc then you can skip this step.
C:\Ruby-**. For example
cmd.exeand move to the directory where you extracted your devkit.
ruby dk.rb init. This will initialize your installation. Then run
ruby dk.rb install.
Step 2: Install Rails
fter successful installation of ruby. Next step is to install rails. Before installing rails install bundler gem running
gem install bundler from your command prompt window.
After installing bundler now run
gem install rails -v version_of_rails for example
If all process are completed without error then you installed rails successfully.