Let me put you in context, for several weeks minecraft stays on the mojang screen loading and does not respond, I usually play 1.8 and it stays on the mojang screen, but in the other versions it does not open, the truth is that I don't know what to do anymore, at first I tried opening the minecraft installer and giving "repair", which worked during that day, but the same thing happened the next, and I decided to reinstall it, but still it did not work. Also if I left-click on minecraft, the "Minecraft does not respond" window pops up and if I close this application, crashea. I had to put version 1.15.2 because it doesn't let me choose 1.8