: Type "Controlled folder access" in the Windows search bar and open it. Allow an app through Controlled folder access Add Executable Add an allowed app and navigate to your prototype2.exe to whitelist it. 3. Clear Corrupted Save Data
Find the prototype2.exe file, right-click it, and select Properties .
Prototype 2 needs VC++ 2008/2010 x86. Download from Microsoft or run _CommonRedist folder in game directory. prototype 2 failed to save data fix
The most common reason Prototype 2 fails to save data is a lack of administrative permissions. Without these, the game cannot write new save files to your hard drive.
This usually happens for three reasons:
: Move any existing files to a backup folder on your desktop, then delete them from the original folder to let the game create a clean save. 4. Limit CPU Core Affinity
If you have leftover files from a previous installation or Prototype 1 , they may cause a "failure accessing storage device" error. : Type "Controlled folder access" in the Windows
: Scroll down to Controlled folder access and click Manage Controlled folder access .
C:\Users\[YourUsername]\Documents\Activision\Prototype 2 . Failed to save data message preventing play Clear Corrupted Save Data Find the prototype2
For , the fix is running as administrator + disabling OneDrive on the Documents folder. If that fails, manually creating the save folder with full permissions solves it. The error is not a game-breaking bug—it’s a Windows permission issue with older games.
Prototype 2 , the open-world action-adventure game developed by Radical Entertainment, is a beloved title known for its high-octane gameplay. However, many players on PC have encountered a frustrating issue: . When you try to save, you might receive an error message, or simply find that your progress has vanished upon returning to the game.