I wanted to use Lets Encrypt to create certificates for my home server. Once created I've exported a .pfx file so that I can reuse the certificate in third party services.
Install IIS and Web Application Development Windows Feature
PS C:\> Install-WindowsFeature -Name Web-Server PS C:\> Install-WindowsFeature -Name Web-App-Dev -IncludeAllSubFeature
Add Domain Binding to Default Web Site