NuGet is the package manager for the Microsoft development platform including .NET.
The NuGet client tools provide the ability to produce and consume packages.
The NuGet Gallery is the central package repository used by all package authors and consumers.
To install Microsoft ASP.NET MVC, run the following command in the Package Manager Console.
From the Tools menu, select Library Package Manager and then click Package Manager Console.
PM> Install-Package Microsoft.AspNet.Web.Optimization
PM> Install-Package EntityFramework -Version 6.1.3
Reinstall all packages in all projects of the current solution
Specifies the name of the project in which packages should be updated.