Depends, what hardware is 32 bit? I mean, I haven't seen a 32 bit machine in a while. Which means your computer is old. Which begs the question, why do you want a 64 bit system if its an old system that probably won't even use more the 2 Gigs of memory. Without 4 Gigs of memory in your system, a 64 bit OS will only slow your system down.