Engine if files are ok should work out of the box without nay installation. in binaries you can find UnrealVersionSelector run it and it will register your enigne and do add up envrament stuff, this probably won’t make it work with launcher (but who knows i never tried that with launcher version, this is what you do with compiled version) but if you ask me launcher is not needed at all, just run UE4Editor.exe and there project selection over there, i rarely using launcher myself.
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