Mandy I made a new user but it still doesn't work :\
Nka, ehm, (I'm nob at reformatting, my uncle always does it) how to restore my pc how it was 3 days ago?
I'm guesing that you have XP?
Well just go to START / All Programs / Accessories / System Tools / System Restore
Then Chose "Restore my System to an eriler time" and select your date
.
And if is not working or you think you want to go back for some other reason you can always restore back like it was.
And note that this is restoring system not reformating, for reformation you will need XP Windows CD and all his drivers on other CDs or else you will be lost lol.