My sisters lap top becomes unresponsive after turning on. What i mean is that after she turns her computer on and logs on to her screen and you try to click on something the mouse pointer does its thing where it spins like its thinking but just keeps spinning similar to when you click on something and it shows an hour glass while it's trying to access what you clicked on. Problem is that once it does that you can't click on anything or access anything. An sometimes the screen just goes black as well and i can't even do ctrl/alt/delete. I can move the mouse around but can't click on anything or do nothing. I thought maybe she had a bad virus or something so i reformatted her hard drive and even after that it would have the issue. Now, i thought maybe it stop doing it because i brought it home and was messing with it and i thought maybe i fixed it because it started to act normal for few days but the problem started again. The only way to do anything productive on her computer is that i have to start it in safe mode. It works in safe mode, barely, with network to. What could be causing the computer to become unresponsive and make freeze up where nothing can be clicked on?? Even in safe mode while i'm trying to type this the computer will have random hiccups and my typing will freeze up then everything i've tried to type will just finally appear. even n safe mode it's messing up. What could be the issue.