Couple of things. Wrong forum (this is the install Red Hat over NT forum) and definitely not enough information.
First the right forum is
www.windowsbbs.com. It is almost as friendly as us and they are very good at these type of questions (one of the moderators runs XP and Red Hat 8.0 on his machine).
But, give them some details. What version of NT? 4.0, Win2K or XP? Is this a server install? What type of computer? How much memory? The more info you give them, the better Mike will be able to answer your question.
Good luck