Prototype 2 Failed To Save Data Fix Exclusive Updated Jun 2026

Windows Defender may block the game from writing to your Documents. Search for "Controlled folder access" in the Windows Start menu and add prototype2.exe to the allowed apps list. Check Folder Permissions: Navigate to C:\Users\[YourName]\Documents\Activision . Right-click the Prototype 2 folder, select Properties , and ensure "Read-only" is unchecked. Steam Community Advanced "Exclusive" Troubleshooting

: Some users find that creating a fresh Local Windows User Account with Administrator rights bypasses corrupt profile permissions and OneDrive interference.

Sometimes, the game lacks the necessary permissions to write files to your Documents folder. Navigate to the Prototype 2 installation folder . Right-click on prototype2.exe and select . Go to the Compatibility tab. Check Run this program as an administrator .

Long-term fix (recommended)

Corrupted installation files can break the scripting required to trigger autosaves or manual saves. Open your . Right-click Prototype 2 and choose Properties . Select the Installed Files (or Local Files ) tab. Click Verify integrity of game files .

Your Windows User Account name likely contains non-English characters or spaces (e.g., "John Doe" or "Игрок").

: Right-click prototype2.exe and select Properties . prototype 2 failed to save data fix exclusive

Open the folder and create a new folder inside it named Prototype 2 .

: Add the game as an exception or temporarily disable this feature. Steps :

If the above steps haven't solved the problem, you need to give the game a completely fresh slate. Windows Defender may block the game from writing

Unlike typical "disk full" errors, the Prototype 2 save glitch is often a logic error within the game’s file handling. On PC, it is frequently caused by the game struggling to interface with the Windows user profile path—specifically if your Windows username contains special characters or spaces.

Click and browse to your prototype2.exe file.