Navigate to your Prototype 2 installation folder, select prototype2.exe , and click Open. 3. Whitelist the Game in Your Antivirus
Before diving into fixes, it helps to understand why the problem happens in the first place. The "failed to save data" error typically boils down to one of these issues:
Windows Defender often blocks the game from creating save files in the %USERPROFILE%\Documents\Activision\Prototype 2 prototype 2 failed to save data fix
If the "failed to save data" error is specific to one save file, you're likely dealing with a corrupted slot-X.bin file.
Corruption in the game's core installation files can cause unpredictable errors, including save issues. Navigate to your Prototype 2 installation folder, select
If your user account lacks full read/write permissions for the specific save directory, the game will fail to create or update save files. Open File Explorer and navigate to your folder.
Before diving into the step-by-step solutions, it helps to understand why this occurs on modern Windows platforms: The "failed to save data" error typically boils
This message typically appears when the game tries to autosave or when you manually quit. Without a fix, you lose all progress, making the game unplayable.
Go to the tab and click Unlink this PC temporarily to test if it fixes the game.
Look for settings labeled , Exclusions , or Protection Shield .