Hmm.. you know, you're not the first person to have this problem. But I don't remember if we ever came to a solution.

Make sure that FFXIV was completely uninstalled from your system, by running a registry cleaner such as Ccleaner.

You may also try moving your program files (x86) folder to a different drive.. but that's a shot in the dark

You say you have windows 32-bit.. <.< is that XP or 7?