1 ) Install Chocolatey in windows

Open cmd prompt and use below command :

@powershell -NoProfile -ExecutionPolicy Bypass -Command "iex ((New-Object System.Net.WebClient).DownloadString('https://chocolatey.org/install.ps1'))" && SET "PATH=%PATH%;%ALLUSERSPROFILE%\chocolatey\bin"

Close and reopen cmd prompt. Ref.: https://chocolatey.org/ https://chocolatey.org/install

1) Install Jekyll on Windows: https://davidburela.wordpress.com/2015/11/28/easily-install-jekyll-on-windows-with-3-command-prompt-entries-and-chocolatey/