Standard uninstallation through the Control Panel often leaves behind corrupted files. ASUS provides a specific Armoury Crate Uninstall Tool to clear these:
[ASUS Armoury Crate] Armoury Crate FAQ | Official Support | ASUS Global including the ASUS Framework Service
Follow of Solution #2 above. The official ASUS uninstall tool is designed to remove all related services, including the ASUS Framework Service, drivers, and registry entries. and registry entries.