Couldn't "Patch" now After Uninstalling, I can't Reinstall

[Sainomance]

So Basicly my friend was kind enough to get me the full version of Final Fantasy. I got back home, wanted to log in, told me about Patch Errors. I tried different things that the internet told me, including disabling my Antivirus and Firewall, but nothing helped, so i decided to reinstall it;
Now Uninstalling, seemed to work fine, all Final Fantasy Based files are gone, but reinstalling it, boy i tell ya...
I downloaded the Installer from the page, and clicked on it, which followed by the language choice. I clicked OK, it loaded for a split second, then gave me the same option again. Always Asking me about the language. I can't go on, i can't install it at all. Currently i'M defragging my PC seeing if thatl help, I've restarted it a couple times... I have a free subscription from my friend's kindness and now I can't even play. COuld someone help me? ^^