Prototype 2 needs VC++ 2008/2010 x86. Download from Microsoft or run _CommonRedist folder in game directory.
: Click on the Allow an app through Controlled folder access link.
If you use a third-party antivirus program (like Avast, AVG, Bitdefender, or Kaspersky), its real-time scanning engine might be locking the Prototype 2 save directory to protect it from perceived threats. Open your antivirus dashboard.
Open the Activision folder, create a new folder inside it, and name it Prototype 2 . prototype 2 failed to save data fix
The "Failed to save data" error in Prototype 2 on PC is a common issue caused by modern Windows security features, administrative permission conflicts, or CPU core count limitations. Method Action Justification Controlled Folder Access
Navigate to your user Documents folder (usually C:\Users\YourUsername\Documents ).
Enforcing administrative clearance bypasses basic read-and-write blocks triggered by Windows. Prototype 2 needs VC++ 2008/2010 x86
Prototype 2 remains a cult classic for fans of open-world superhero destruction, but its PC port is notoriously unstable on modern systems. One of the most frustrating issues players face is the dreaded error. This bug completely halts game progression, preventing the system from creating new save files or overwriting existing ones.
When the game says “Failed to save,” it isn’t lying. Your computer literally told the game, “No, you do not have permission to write here.”
Alternatively, you can temporarily toggle to Off to test if this resolves the issue. If you use a third-party antivirus program (like
Prototype 2 often fails to save data on modern Windows 10 and 11 systems because it cannot properly access the Documents folder due to modern security settings, administrative restrictions, or conflicts with high-core-count processors. 1. Grant Administrative Privileges
Copy those .sav and .bin files to your desktop as a backup. Then, inside the Prototype 2 folder. Yes, delete it. Corrupted metadata is often the culprit.