I have a Compaq Presario PC SR5710y with Windows Vista Service Pack 2 32-bit. I was thinking of upgrading the windows to a 64-bit version of Vista but then I thought wouldn't the OS be much smoother if I upgraded it to windows version 7 or 8 64-bit. So my question is will windows 7 or 8 64-bit be faster than my windows vista 32-bit, if not should I just upgrade windows vista to 64-bit.