Fixing VC Redist download links.

Documentation/prereqs.md

@@ -8,12 +8,15 @@ For Operating System support, please refer to [the roadmap document](https://git
 ## Windows dependencies
 On Windows, the only dependency is the VC++ Redistributable. Depending on the version of Windows you are running on, the versions are changing.
 
-.NET Core requires the VC++ Redistributable when running on Windows. It is installed for you by the .NET Core installer. You need to install the Visual C++ redistributable manually if you are installing .NET Core via the installer script (`dotnet-install.ps1`) or are attempting to run a self-contained .NET Core application. 
+.NET Core 1.X requires the VC++ Redistributable when running on Windows. It is installed for you by the .NET Core installer. You need to install the Visual C++ redistributable manually if you are installing .NET Core via the installer script (`dotnet-install.ps1`), unzipping, or are attempting to run a self-contained .NET Core application. 
 
-[Visual C++ Redistributable for Visual Studio 2015](https://www.microsoft.com/en-us/download/details.aspx?id=48145)
+Downloads:
 
-* Windows 7 and 2008 only
-    * Please make sure that your Windows installation is up-to-date and includes hotfix [KB2533623](https://support.microsoft.com/en-us/kb/2533623) installed through Windows Update.
+- [Visual C++ Redistributable for Visual Studio 2015 - x86](http://go.microsoft.com/fwlink/?LinkID=800028)
+
+- [Visual C++ Redistributable for Visual Studio 2015 - x64](http://go.microsoft.com/fwlink/?LinkID=800027)
+
+Note for Windows 7 and 2008 users: Please make sure that your Windows installation is up-to-date and includes hotfix [KB2533623](https://support.microsoft.com/en-us/kb/2533623) installed through Windows Update.
 
 ## Ubuntu
 Ubuntu distributions require the following libraries installed: