my laptop

i don't know what's wrong with my laptop
class ended at 6pm today
came back, my brother told me that my laptop cannot log on
my user profile cannot be loaded
at first i thought my brother typed in the wrong password or what
manatau when i tried time, i really cannot log in to my user profile even though i typed in the right password
wondering what happen to it
this morning still okay
i even play the Pet Society

my friend once told me that Window Vista is not as good as XP
but i was stubborn to choose Vista
sometimes after shut down, it can update things
i don't know what is it
yesterday night, this morning, this afternoon keep on updating
update what?
no idea

now i'm using computer with the Window 2000 Professional 
some website cannot open such as Facebook
haih... T.T
hopefully Yahoo Finance, Paritech, and any other financial website that i need to use for the financial assignment can open...

2 weeks break has started
no travel, no shopping, only books