Dual boot two windows 7's?

pantherking

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Feb 11, 2010
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so in an odd series of events i have ended up with a 32 bit ultimate and want to put a 64 bit Home Premium on my computer instead. My plan is to create 2-3 partitions on my hard drive (2tb), one that has the already installed 32 bit ultimate, one thats FAT so i can back up my files onto it, and one blank partition for the 64 bit Home premium. i will then install the home premium, copy my back upped files from the FAT partition, and then delete/format the old Ultimate partition. is there any reason this wouldnt work or anyway to make it simpler without an external HDD?