I have a couple Dell machines with OEM 7 Pro 32-bit licenses but are running 64-bit chips. Is there any way I can upgrade these for free to 64-bit licenses? (This really boggled my mind. They ship ...

So I bought a used HP business desktop from microcenter and it has a 64-bit Core 2 Duo installed. Of course, the people at microcenter had to put 32-bit W7 on it (64-bit was installed previously, from ...