Problems with UE4

Hi. I have a MacBook Late 2009 with an Intel Core 2 Duo, but I have problems with the Unreal Engine because it hangs and does not open

just going by the min spec provided by epic you dont meet the min spec to use unreal engine. the min spec states that you need at least a quad core processor and a dedicated gpu. now i have seen people run the engine outside of the recommended spec but it will not perform great. that said if you really want to try using the engine you could try an older version that may perform a bit better for you. the older versions have some differences but are overall not much different in their core features. personally i run 4.17 on my system since it performs best for me and my hardware and i dont need the latest features at the moment.