Hi Rowddy
Un-install your current one from the Control Panel Program and Features.
Run the registry cleaner and reboot your system.
Install your game launcher from here.
You can install this one on any drive and it does not need the default x86 directory.
Post #97 SH5 Game Launcher Install It Anywhere On Any Drive
Post #7 Changing The GPU Settings
Run this new game launcher also as an administrator
Post #74 Run Both SH5.exe And Ubisoft Game Launcher Application's As Administrator's
Peter