You need to install Microsoft Visual Studio 2017 Community

Zou alson need to install the Windows 8.1 SDK. (\Innolab\08_software\Windows\sdksetup.exe)

Once installed, you need to install all necessary tools:

1. Menu > Extras > Tools and Features…
2. for Visual Studio Community 2017 → change…
3. select All tools for Windows (3) → i.e. universal windows plattform / desktop development / .NET desktopdevelopment

If Unreal complains about missing paths, maybe a registry entry needs to be changed.