How do you install 64bit on an iMac late

[Hugh]

I have Windows 7 Pro 64-bit. When I boot from it, it just show a choice of 1 or 2 (both blank), you can't choose any thing. How do install Windows 7 64-bit on a late 2007 iMac?

Hugh

 

[Kevin Rohrer]

Try this:

http://manuals.info.apple.com/MANUALS/1000/MA1583/en_US/boot_camp_install-setup_10.7.pdf