Order to install .NET Core for VS 2015 with update 3

Hi All.

I had bad experience to install .NET Core apps on my computer. Now I'm using Visual Studio Enterprise 2015 with Update 3 and Windows 7 Enterprise 64 bit. I re-image my computer and would like to install VS and .NET Core apps from the beginning. I'm planning to install apps by this order:

1. ) Visual Studio Enterprise 2015 with Update 3
2. ) .NET Core 1.1 SDK (64 bit) - file name dotnet-dev-win-x64.1.0.0-preview2-1-003177.exe
3. ) .NET Core 1.0.1 tools Preview 2 - file name DotNetCore.1.0.1-VS2015Tools.Preview2.0.3

Is that correct? If not what is correct steps and order to install VS and .NET Core apps correct and successful?

Also if VS 2015 with Update 3 and .NET Core SDK and Tools Preview2 installed yet. What need to do to reinstall .NET Core SDK and Tools Preview2?

Thanks.