To be fair, this wasn't a screenshot from me, or a recent one. I just grabbed the first screenshot I could find about this option, since I couldn't make one myself right now.How come you have both 32 and 64 bit versions installed?
The screenshot itself is probably some years old now, judging by the 32bit & 64bit options
(At the time people were wondering how to get rid of the 32bit version after installing the 64bit version, kind of like Horizons/Odyssey going on now)