Log into your dedicated or cloud server as administrator.

Click on: Start
Click on: Server Manager

Under: Server Manager
Click on: Dashboard (On left pane)
Under: Welcome to Server Manager
Click on: (2) Add roles and features
Under: Add Roles and Features Wizard
Click on: Next (Default)
Click on: Next (Role-based or features-based installation)
Click on: Next (Select a server from the server pool)
Fill in: Web Server (IIS)
Under: Add Roles and Features Wizard
Click on: Add Features (Default)
Click on: Next (Default)
Click on: Next (Default)
Under: Role Services (Scroll down)
Fill in: FTP Server
Click on: Next
Click on: Install
Click on: Close