Failed to Install .NET Core on Visual Studio 2015 Update 3

Problem

When you click the install button on .NET Core installation you will get this error. Although you already have Visual Studio Update 3 Installed

Cause

This might be happening several packages is not ready or corrupts.

Solution

1. Repair your Visual Studio by Re-installing the Update 3.
2. Download the latest patch on Update 3 namely Update 3.3 (KB3165756)
3. Restart your VS
4. Run it again
5. If you still having problem, open the download folder where DotNetCore.1.0.0-VS2015Tools.Preview2 located
6. Open the Command windows from there by right clicking it and Open Command Prompt Here
7. Types: “DotNetCore.1.0.0-VS2015Tools.Preview2.exe” -SKIP_VSU_CHECK=1
8. The Installation will start, make sure you are connected to the internet to download the dependencies