I'm about to reinstall the OS on a friends older laptop. It has a Intel Core2 Duo T5250 @ 1.5GHz. I believe it is 64-bit architecture. The laptop only has 1GB of RAM. It looks like it shipped with Vista 32-bit.
I'd like this laptop to be as snappy as possible. What OS would be best? Win 7 32-bit? Win 7 64-bit? Vista? Windows 8?