* Activation via Internet (1x per system, no limits, Fallback for systems without web access)
* Copy protection Securom: The original disc is required for playing (Execpt: Download version of GTA 4, for example from Direct 2 Drive)
* Requirements for playing (singleplayer): Games for Windows Live account for saving/achievements (1x free creation), original disc, Securom runs in the background
* Requirements for playing (multiplayer): Active internet connection, Games for Windows Live account, For uploading videos: Rockstar Social Club Account.
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* If you don't have web access or don't want to connect your gaming PC to the Internet, Rockstar wants to offer a not yet specified system to activate GTA 4 via another PC with web access. Details are supposed to be available on launch.
* For the normal GTA 4 (PC) version with disc installation, activations are unlimited. But the original disc is required for playing.
* This does not apply for legally downloaded versions of GTA 4: Depending on the vendor the following is possible: Five parallel installations with the possibility to revive a "free” installation, if an old installation is deleted. For this purpose the customer has to have web access with the PC GTA 4 is installed on.
* Those playing GTA 4 with an illegally hacked version have, according to Rockstar, to fear that the game will not be fully playable.
* If you change two major components of your PC (like the graphics card or the CPU), you will possible have to reactivate GTA 4.