When I boot my raspi, it works fine. Booted NOOBS and it was good. But when I tried raspbian, the keyboard and mouse stopped working, and wouldn’t let me past the login screen! My pi was working a minute ago, but for some reason, when I tried using the pre loaded file manager, it said it wasn’t found. So I rebooted. Than everything started to happen. Please help me, I don’t know much about computers, and really need help.