Hi
I want to install Windows 7 and Mac Os on same computer any body help me how can i make my drive dual boot.

I doubt he is talking about intel Mac...if so than follow jbennet's instructions...if not well i dont think the following is legal to do...

Get a copy of iatkos v7 and make sure you check for compatible drivers for your hardware here

And as for windows 7, well go buy windows 7 first and install it.

thanks firends i have Mac intel and windows 7 . if i install windows 7 and when i install mac then i cann't access windows 7. Mac change the partition filesystem of the hdd.
thanks
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You install OSX first, then install Windows7 using bootcamp.