Recently i am getting this warning " Windows detected a hard disk problem ". then i used seatools for windows to check if there is any error. Basic test shows result as FAILED. then i started seatools for dos. It was going fine but suddenly it stopped at 77% and then it said " thank you for using seatools. press ctrl+alt+del to restart". i wasnt satisfied so i tried "chkdsk" and windows inbuilt error checking software. they gave me no errors. I have no idea which one is right. any help is much appreciated