I notice that some are baffled what to do when they already have Visual Studio installed or they are not sure they have the options set.
If you downloaded from the Internet, you should save the installer to disk before running it. That is because the small installer file is used to make changes, offer updates, and make other VS configuration changes.
If you run it again, or download it again and run it, it will start up as if you are going to install Visual Studio [Community] over again.
What actually happens, once preparations are completed, is your current installation is detected and you will be asked what you want to do with it.
You can then modify your configuration to have the development features that you need. You can also change this in the future by redoing this step.
For the VC++ to use with Unreal, just select all of the VC++ features:
There is one additional requirement, down under Common Tools,
This is about features for developing/installing extensions into Visual Studio itself. I suspect that is used for unreal integration, and we’ll see if that is the case when Unreal is installed.