Edit: The point of the post I suppose is to let devs know if a similar chain of events (starting downloads before log-in has happened) has the potential to cause issues. As for my personal issue I will reinstall Ubuntu and I guess I was lucky I didn't have anything important yet saved on the disks.
So I'm dual booting and I notice sometimes when I accidentally start Ubuntu (let startup process run itself) that even before I have logged in there's some downloads etc. happening in the background in the login screen.
Sometimes when I realize I accidentally started Ubuntu I just restart and navigate to Windows again. A) will this restarting potentially cause errors in the Ubuntu update process?
After the above had happened a few times, I manually started the update process inside the operating system, having logged in and all that.
That is when I got (picture 1 Started Fingerprint Authentication ..Daemon? perhaps) happen and it stayed like this for 2-3min until I decided to push restart. 
After restarting I'm stuck in
Is it likely something broke? I can't remember login details so is reinstall/repair-install the only viable solution here or is there a magic button etc. that will help me proceed? Or any other way I could maybe try fix this issue ?