[Newcomers Readme!] How To Install UE4 From The Launcher

Guys I need HELP!!!

I visited youtube and saw a video on gamespot channel.I saw the title: UE4 is free! I went to the unreal engine 4 page and downloaded the launcher. i didn’t have time to download it until today. Today I opened the file and it started downloading: 2 secs later an error popped up: ,This installation package is not supported by this processor type. Contact your product vendor.‘’

PLS HELP I WANT THIS ENGINE NOW IT’S FREE!!!