Locate a trusted, virus-free DRM-free executable or "No-CD" fix for version 1.02.
If you’re referring to the (based on the first movie), that title can be played fully offline after a one-time activation (via SecuROM or digital storefront). But again, there’s no special “activator” beyond the official license key. James Cameron Avatar Game Offline Activation --FULL
Insert your disc and run the setup file as an Administrator. Locate a trusted, virus-free DRM-free executable or "No-CD"