10 Mbs in download…Anyway…i think i have resolved…i have unistall again the launcher, and i have delet ALL files (in Temp, Programdata, ecc…) and reinstall…Now the launcher is opening and finally i am installing the Unreal Engine…I hope that don’t stop work now…Maybe there was some file that created problems…if it does not work anymore, I rewrite in this post or I open a new thread?