Mac ox 1.6.8. Intel 64 bit, 19" late 2009 macbook 250gb hard drive i have done this 3 times i have updated my computer, i partitioned bootcamp 200 gb and 50 for mac. i inserted windows 7 ultimate sp1 64x disc when i get to the "install how" it only gives me the option to upgrade or custom. upgrade says log into my windows. which i dont have and custom says that that windows cannot be installed on the "partition 3 :Bootcamp" when i click on " view details" it says it must be in NTFS format" i have wiped entire Mac hard drive then reinstalled mac os X So i definitely don't already have windows installed So please help me install windows.