So, the fuse in my house blew up over night while my computer was on.The fuse is now fixed but my computer won't turn on properly. It starts up normally but as soon as it gets to the white screen with the apple a "progress bar" appears and a spinning wheel. After a few seconds of "thinking" the computer just turns it's self off. I still have apple care (im in the UK) but I have never used it till now. So I'll look in to how how I can use it (If someone can help me out with that too, it would be great!). I've already checked out several topics on this forum about similar issues but in all the other cases the computers didn't turn on at all, could this be just a small issue Are there any things I could try to maybe start it up properly? I've already tried different plugs and test the plug that the computer was in and they are functioning normally. My iMac is the late 2012 new model.