Press the Start key on your keyboard, and start typing “features”. In the search results pane, select “Turn windows features on or off”.
![Turning Windows features on in Windows Server 2012 R2. Turning Windows features on in Windows Server 2012 R2.](/blog/2014/06/deployment-prerequisites-for-windows-81/image02.png)
This will open the Add Roles and Features Wizard. Press Next to continue past the Before you Begin page.
![The first page of the Add Roles and Features wizard. The first page of the Add Roles and Features wizard.](/blog/2014/06/deployment-prerequisites-for-windows-81/image04.png)
Select “Role-based installation” and press Next.
![Selecting the installation type. Selecting the installation type.](/blog/2014/06/deployment-prerequisites-for-windows-81/image06.png)
Select the local server, and press Next again.
![Selecting the server to add roles to. Selecting the server to add roles to.](/blog/2014/06/deployment-prerequisites-for-windows-81/image08.png)
Check the box next to “.NET Framework 4.5 Features | ASP.NET 4.5”.
![Enabling ASP.NET 4.5 Features. Enabling ASP.NET 4.5 Features.](/blog/2014/06/deployment-prerequisites-for-windows-81/image10.png)
Select “Web Server (IIS)” from the list, and click Add Features button to finish.
![Adding the Web Server (IIS) Role. Adding the Web Server (IIS) Role.](/blog/2014/06/deployment-prerequisites-for-windows-81/image12.png)
Expand “Web Server (IIS) | Web Server | Application Development” node, and check the nodes “Application Development”, “.NET Extensibility 4.5”, “Application Initialization”, “ASP.NET 4.5”, “ISAPI Extensions”, and “ISAPI Filters”.
![Enabling the required application development roles. Enabling the required application development roles.](/blog/2014/06/deployment-prerequisites-for-windows-81/image14.png)
Continue pressing Next, then press Install when necessary. This step may take some time.
![Installing the roles onto the server. Installing the roles onto the server.](/blog/2014/06/deployment-prerequisites-for-windows-81/image16.png)
Once complete, press Close to exit the wizard.
![The role installation has been completed. The role installation has been completed.](/blog/2014/06/deployment-prerequisites-for-windows-81/image18.png)