New to UE4 and C++, weird errors.

Hi! I’m new to Unreal Engine 4 and C++, I followed this tutorial for beginners, in the tutorial he shows you how to make an actor, I tried to make one but got errors in the files “Atomic.h”, “EXEC” and “Microsoft.MakeFile.Targets” which I haven’t even touched. If anyone knows how to fix this, I would be very grateful if you replied. If you need more information/screenshots just tell me. Thanks in advance.