Blue screen after running BIOS, no error message
I was trying to get into the BIOS to change some menial things on my computer. However, I had to restart suddenly because the BIOS was not responding (or I was making mistakes trying to get into it). Anyway, now the computer takes ages to start (around 15-20 minutes). Before it starts I get a blue screen for maybe a second, but I cannot see any error message. I don´t know what to do and what to search for, since I truly cannot see any clue. What should I do next?