I got a blue screen last night and haven't had one since then. I found out about Last Working Configuration too late, so I did a system restore. I then tried to figure out the problem. I have one hardware conflict and it is from teredo tunneling pseudo-interface, but I have no idea what that is and I do not know if it can cause a blue screen. I don't know if any hardware isn't working or if some software is causing the problem. I didn't download anything recently. The last thing I downloaded was 7Zip (at least I think so) and that was on 1/27/15. When the blue screen happened I was listening to music and playing a game, and it was really unexpected. I did not get a chance to see the blue screen message or take a picture because it immediately shut down afterwards. I am constantly on edge now because any moment I think the blue screen will happen again. If anyone can help me figure out the problem I will be really grateful. Thank you in advance.