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Windows 7 Home Premium 3 packs
I read that it contains both 32 bit and 64 bit. Can you use the key on a 32 bit one time and the next time a 64 bit. I have a 32 and a 64 bit machine and if I bought a 3 pack could I use the same key on both Machines or does it have to be all 64 or 32 bit that you use it on.