Prototype 2 — Failed To Save Data Fix Exclusive

If you have done everything above, run the game.

If you're playing on Steam, follow these steps: prototype 2 failed to save data fix exclusive

By applying the exclusive fixes above—specifically the or the Legacy IO registry tweak —you attack the root cause. You realign the game's perception of your Windows user account and force the save routine to use stable, legacy paths. If you have done everything above, run the game

Running the game as administrator ensures that it has the necessary permissions to save data. If you have done everything above

General permission issues can prevent the game from creating the necessary save directory.