When I try to install Microsoft Visual Studio 2015 for programming C++ in Unreal 4 I always get an error(picture).
Hello
You’ll need to contact Microsoft’s support to get assistance with installing Visual Studio. Unfortunately I cannot tell what the error is from that picture. It would be best for you to provide the log file that it offers for you to view whenever you contact them so that they can know what the issue is.
Update windows with redistributables
Install all important updates, both unreal and VS sometimes give error cause of it.