Well hello its been a week i believe sense i made an update to my macbook pro that the it said it needed every time i go in it i click on search for upgrade on it so it found one when i click on it everything goes ok it tells me that i need to restart it but instead i turn it off cause i needed to go to bed anyways the next morning i turn it on and its on the booting part where apple logo appears well it starts filling a bar then it shuts down and when i turn it on again it does the same it just loops to that part where its filling up the bar with a spinning wheel ill post a picture later but do u guys know how to fix this?