I recently replaced HD on my old P4 box and performed a baremetal install of WinXPH. Win assigned J to the drive. Later, using Disk Director I stupidly went in and changed the J to C (C had been assigned to another partition on my slave drive). Of course on reboot I guess Win was looking for J and would not boot passed the light blue screen with the Win logo. Am I correct in the assumption that I must format and re install Win? Booting with the DD disk shows that in fact the system drive is now C, but will not allow a change.