Newbie question. I have installed 4.14.3 not long ago. I see there is an upgrade to 4.15. I download the 35 mb installer. I click on the installer and get the message that it can’t install because the epic games launcher is open. That is what I just opened. Thanks!
It is complaining about another version of the engine running. Make sure you close all other versions of UE4Editor.exe.
(Sometimes you have to use Task Manager to find them if they do not close correctly)