NuGet

• Download NuGet Package Manager for Visual Studio
• PM Console Powershell Reference 
• You can also create and publish your custom NuGet Package to the NuGet Package Gallery as well downloading existing ones.

Reinstall a Package:

Update-Package –reinstall SpecFlow

Install a Specific Version of a Package

Install-Package SpecFlow -Version 1.9

Uninstall a Package 

Uninstall-Package SpecFlolw -Force