Prototype 2 Failed To Save Data Fix

The "Failed to save data" error in Prototype 2 is often resolved by running the game as an administrator, ensuring Controlled Folder Access allows write permissions, or disabling OneDrive sync for the save folder. Limiting CPU cores to 4 or 8 via msconfig or applying community patches, such as the PrototypeFix mod, can also fix stability issues causing this error. For comprehensive fixes and guides, visit PCGamingWiki . Failed to save data message preventing play

5. Testing & Validation

5. Conclusion

Add an allowed app

Select and browse to your Prototype 2 installation folder (usually C:\Program Files (x86)\Steam\steamapps\common\Prototype 2 ). Select prototype2.exe to whitelist it. 2. Disable OneDrive Syncing prototype 2 failed to save data fix

Don’t panic. We are going to fix this in order from “gentle” to “nuclear.” The "Failed to save data" error in Prototype

• Right-click OneDrive icon in system tray → Settings → Backup → Manage Backup → Turn off backup for Documents.
• Or temporarily pause OneDrive syncing while playing.

2. Technical Etiology

9. Disable Fullscreen Optimizations

Controlled Folder Access

Search for in your Windows Start menu.