Unable to start Unreal, stuck at 39%

Nobody has a solution ?

I tried some stuff, but I did not find (nor understand) everything I needed, and I don’t wanna ruin my laptop.
Epic Games where are you ? I run on i9-10980HK, RTX 2080 Super, 32Go RAM and a SSD.

I’d like to be able to just even try the soft lol.

Thank you by advance if anyone does anything.