Fallacy busting - the magical morphing x64...
I gifted a copy of Windows Vista x86 to a family member the other day. Today that family member was on the phone to me saying that his computer technician had told him that he has an x64 computer because the computer has "two 32 bit dual core processors".
First, x86 Vista will not magically morph into x64 Vista if you install it on an x64 machine.
Second, if you have 2 x 32 bit processers in your computer this does NOT mean that you have a 64 bit machine.