Name the new profile, change its profile group to , and log into it to run your game cleanly. Prototype 2 Save Game Settings Summary
In the or Backup tab, ensure that your Documents folder is not being actively synced, or disable OneDrive entirely to test. 5. Check Antivirus/Firewall Interference
: Windows Security often blocks the game from writing to your Documents folder. Search Windows for "Controlled folder access." Allow an app through Controlled folder access Add an allowed app Browse all apps prototype2.exe in your game installation folder. Run as Administrator (All Users) : Basic "Run as admin" may not be enough. Right-click prototype2.exe in your install folder and select Properties Compatibility tab and click Change settings for all users Run this program as an administrator , then click Apply and OK. Sign Out of OneDrive : OneDrive can interfere with the
Check if is turned on. If it is, you have two choices: prototype 2 failed to save data fix
How to Fix the Infuriating "Failed to Save Data" Error in Prototype 2
Sometimes the game engine fails to generate the initial profile folders upon its first launch. Forcing the directory structure manually fixes this pathing error. Open your Windows .
Search for in your Windows Start menu.
Windows Defender includes a security feature called "Controlled Folder Access" designed to protect your files from ransomware. However, it frequently blocks legitimate older games like Prototype 2 from writing save files to your Documents folder. How to allow the game through Windows Security:
Prototype 2 tries to save to: C:\Users\[YourUsername]\Documents\Activision\Prototype 2\
The most common root cause is the game lacking permission to write save files. as it solves many permission-related issues. Name the new profile, change its profile group
Corrupted or missing installation files can cause save game scripts to fail. Steam has a built-in tool to scan your game files and automatically replace any anomalies. How to verify files: Go to your . Right-click Prototype 2 and choose Properties . Click on the Installed Files (or Local Files ) tab. Click the Verify integrity of game files... button.
Temporarily disable these to see if they are the cause.
Have a fix I missed? Did the registry trick work for you? Let me know in the comments below. Keep evolving. Right-click prototype2