Installing nin is weird man.

[Sun]

Either 2 things happen when i redownload Nin Online's Installer either the installer does its thing and i try to open the game my pc shows this:

 
Or

When the installer is "done" downloading it says "Can't configure Installer!"

[Arrancar]

Probably your antivirus, i had that before

 

[Daizo]

Even after installing it I get this every time I try to run it LMAO