sorry for not replying, i been busy at the weekend and my university...
my problem is solved on last friday when i found a solution on the Internet and i have booted my friend computer by using my memory stick, his computer cd driver couldnt run any Windows disc when i try to boot it up by the his computer cd drive.
Anyway, thanks very much who had give me an advise on my problem, every one here is so kind and helpful. that is what i want to let lurkswithin know, if you dont want to help, u can forget it, dont use such language to say, not really nice, and i m sorry if i am the reason that wasted anybody's time in here