I was trying to install Windows XP using a Dell copy of XP and on to an old Compaq Presario laptop for my wife. The install appeared to go ok except when I was done and restarted, Windows XP starts and then stops and asks that I install the installation disk. After installing the disc, I get an error message stating "Access is Denied" and I am forced to exit. How can I fix this and/or bypass so that i can remove the install and try again?