Save Data Fix — Prototype 2 Failed To

The "failed to save data" error in Prototype 2 is typically caused by Windows folder protection, permission conflicts, or issues with OneDrive syncing. Below are the most effective solutions to fix this issue: 1. Allow Through Controlled Folder Access Windows Security often blocks the game from writing to the Search for "Controlled folder access" in the Windows Start Menu and open it. "Allow an app through Controlled folder access" "Add an allowed app" and browse to the game's executable ( prototype2.exe ) in your installation folder (usually C:\Program Files (x86)\Steam\steamapps\common\Prototype 2 2. Run as Administrator (Global Settings)

But for a significant chunk of PC gamers, that power fantasy has been interrupted by a message more terrifying than any Evolved: “Failed to save data.” prototype 2 failed to save data fix

8. Conclusion

The data save failure in Prototype 2 has been resolved via Build v0.2.1-hotfix. The root causes (serialization logic and file pathing) have been addressed, and rigorous testing confirms that data persistence is now stable. The team is proceeding with development on Prototype 3 with updated protocols to prevent recurrence. The "failed to save data" error in Prototype

Alternatively, you can temporarily toggle Controlled folder access to Off to test if this resolves the issue. "Allow an app through Controlled folder access" "Add

For PS4: