i had download this game in my first computer, it said error code 4 that i cant lauch the game and sevral second later it got dissapeard and the second computer, it got that error code 4 again!! Please tell me how do i fix that! 
what is your system locale (language)?
do you have any unicode symbols in your windows username?
Buy the game if you havenāt done so already.
my system is at VietNam and i dont have unicode symbols just the name āADMINISTRATORā
no freaking way, i dont want tot spend money but how do i buy?
On Steam. You wonāt receive any support on pirate copies of the game.
okay. is this your first account on your computer? did you ever rename your account to āADMINISTRATORā before? or the worst case scenario, is this your system admin account?