Computer recieved the blue screen of death but...

Just today, my screen started to freeze, turn white, unable to move the mouse and the only way this was fixed was moving my screen a little. The screen had to be held in place for me to be able to move the mouse. I decided that I should shut down my computer and see if the freezing white color go away. When I turned the computer back on, everything was going fine until i had to log in, when i logged in it gave me a black screen. I had to restart my computer again and that is when it gave me the blue death screen. I am wondering if anyone knows the solution to this problem? if they think it is something is lose? thanks in advance