I will not respond further to this thread because it is simply an attempt at spreading nonsense.
I had previously believed the o/s could interface with legacy 32 bit drivers, and I was wrong. I'm pretty sure I wasn't the only one confused on this issue, or maybe I was?
Like many have pointed out it is not a huge deal, unless you have some old devices that don't yet have 64 bit drivers. I would think this may be an issue for gamers who have a plethora of USB game controllers that each have custom drivers in windows. I'm a hobbyist musician myself, and I have a multiport MIDI interface that is a USB device. It has a special windows driver. Is it going to work in Windows 64? I'm not really sure.
Some of my USB devices, like my logitech mouse, use a standard windows driver, so I know those are safe, but others seem to use their own.
HailMary