I use my mothers laptop that she gets from her company and i recently used it to do some homework and I didnt shut it down, while the screen was on I just closed the laptop and its battery died because I didnt charge it. So now im on it and i cant start up normally, i can only start up on safe mode and even then I cant make changes to the computer because it needs an administrator password which me and my mom dont know (im assuming her company does) but after I try to start normally i click enter and the windows animated logo starts up and then after it starts up the screen is a dark blank screen without the mouse cursor on it. Ive tried everything and now my mom thinks i broke it and I dont want her to get in trouble with her job. Please help..