Entity Framework is made up of the EF Designer (included in Visual Studio) and the EF Runtime (available on NuGet).
EF Designer Included in Visual Studio
The latest version of the Entity Framework Designer is included in Visual Studio 2012.
If you perform a custom install of Visual Studio 2012 you will need to ensure Microsoft Web Developer Tools or Microsoft SQL Server Data Tools is selected, otherwise the EF Designer will not be installed.
EF Runtime Available on NuGet
The latest version of Entity Framework is available as the EntityFramework NuGet package. If you are not familiar with the NuGet Package Manager, we encourage you to read the NuGet Overview, if you are using Visual Studio 2012 then NuGet Package Manager is already installed for you.
Installing the EF NuGet Package
You can install the EntityFramework package by right-clicking on the References folder of your project and selecting Manage NuGet Packages…
Installing from Package Manager Console
Alternatively, you can install EntityFramework by running the following command in the Package Manager Console.
Installing the Latest Preview
The above methods will give you the latest fully supported release of Entity Framework. There are often prerelease versions of Entity Framework available that we would love you to try out and give us feedback on.
To install the latest preview of EntityFramework you can select Include Prerelease in the Manage NuGet Packages window. If no prerelease versions are available you will automatically get the latest fully supported version of Entity Framework.
Alternatively, you can run the following command in the Package Manager Console.