SCCM 2012 R2 Install - IIS BITS Warning in Prerequisite Check

When installing SCCM 2012 R2 you may find that, in spite of the fact you have installed all of the required Roles and Features: 

Server roles:

Web Server (IIS)

Web Server (IIS) Role Services Required:

Common HTTP Features

Static Content
Default Document
Directory Browsing
HTTP Errors
HTTP Redirection

Application Development
ASP.NET 3.5

ASP.NET 4.5

.NET Extensibility 3.5

.NET Extensibility 4.5
ASP
ISAPI Extensions
ISAPI Filters

Health and Diagnostics
HTTP logging
Logging tools
Request Monitor
Tracing

Security

Basic Authentication
Windows Authentication
URL Authorization
Request Filtering
IP and Domain Restrictions

Performance
Static Content Compression
Dynamic Content Compression

Management Service
IIS 6 Management Compatibilty
Management Service
IIS Management Scripts and Tools
IIS Management Console

Features:

BITS
Remote Differential Compression

.Net Framework 3.5 (this can be tricky - (http://robotarchive.blogspot.co.uk/2014/09/install-dot-net-35-on-windows-server.html) 

So all the roles and features are installed but you still see that BITS and IIS are listed as warning under the prerequisite checker, as shown below:

In order to sort this issue, have a look into the following:

• Check that IIS Admin Service is running
• Check Background Intelligent Transfer Service is running
• Check World Wide Web Publishing Service is running
• Double Check you've installed all the required pre-requisite roles and features