On a device with internet access, visit the official SecuROM GTA IV Support Site .
You enter that generated code back into the offline installer. Common Issues & Tips
If you are using the old retail version, the manual activation is a :
Offline activation in GTA 4 refers to the process of activating the game without an internet connection. When you install the game, you are required to activate it online or offline to verify your copy and ensure it is legitimate. However, some players may face issues with online activation, or they may not have a stable internet connection. In such cases, offline activation becomes a viable option.
Many users find that manual activation fails because the old SecuROM servers are unstable. The Rockstar Support site now recommends redeeming your old DVD serial directly in the Rockstar Games Launcher to get the modern, DRM-free version. Summary Table Manual/Offline Activation Rockstar Launcher (Modern) Effort High (Requires code generation) Low (Auto-activates) DRM Uses SecuROM / GFWL Rockstar Social Club Stability Poor (Legacy servers) High (Current support) Version Original (v1.0.7.0 or older) Complete Edition (includes DLC)