About windows xp problem

Hello,
my name is ilyas.When I am installing windows xp in my system a blue screen is displayed and in blue screen some massege is displaying that is a problem has been detected and windows has been shutdown to prevent damage to your computer.check your hard drive to make sure it is properly configured and terminated.To check hard drive corruption,and then restart your computer.
In my computer windows 7 is pre installed.but windows xp are not installing why.
please help me.