Long-term fix (recommended)
Either turn it off (not recommended for long-term) or click . Add prototype2.exe to the allowed list. 3. Clear Corrupt Profile Data
Windows Security has a feature called "Controlled Folder Access" that prevents apps from modifying your Documents folder—which is exactly where Prototype 2 tries to save. Search for in your Start menu. Go to Virus & threat protection > Manage settings .
Many modern PCs automatically sync the "Documents" folder to OneDrive. Prototype 2 attempts to create a save folder in Documents/Activision/Prototype 2 , but the cloud syncing process can lock the file, causing the save to fail. prototype 2 failed to save data fix exclusive
Locate and select the prototype2.exe file to grant it saving privileges. Verify Game Files (Steam Users)
: In the General tab, toggle the switch for Keep games saves in the Steam Cloud to Off .
Sometimes the installer fails to generate the required save folder structure in your user profile, leaving the game with nowhere to write data. Long-term fix (recommended) Either turn it off (not
If using Steam, right-click Prototype 2 in your library, go to , and try disabling Steam Cloud Synchronization to prevent outdated cloud data from overwriting local saves. 4. Set CPU Affinity (For High Core Count Processors)
Click and navigate to your Prototype2.exe installation folder.
Concrete code sketch (pseudo / conceptual) Clear Corrupt Profile Data Windows Security has a
If this folder is write-protected by Steam or UAC, the game fails silently.
Your antivirus might be blocking the save process. Add prototype2.exe to your anti-virus exclusion list.
Select and click Open to authorize write permissions.