Prototype 2 Failed to Save Data Fix: Comprehensive Solutions
Add the Prototype 2 save folder (located in your Documents directory) to the exclusion list. 4. Fix Save Folder Permissions
If you have played the game on multiple devices (like a PC and Steam Deck), you might also need to delete the Steam userdata folder located at <Steam-folder>\userdata\<user-id>\115580\ . This forces a full resync of your cloud data.
Before diving into the fixes, it helps to understand why this error happens. Prototype 2 was released in 2012, designed primarily for Windows 7. Modern operating systems like Windows 10 and Windows 11 feature drastically tightened security protocols. The error almost always stems from one of three issues: prototype 2 failed to save data fix
Windows often blocks games from writing to the Documents folder unless they have explicit administrative privileges.
The final path should look like this: Documents\Prototype 2\SaveData . Restart the game and check if it can save now. 4. Adjust OneDrive Settings
Method 1: Configure Windows Controlled Folder Access (Most Common Fix) Prototype 2 Failed to Save Data Fix: Comprehensive
Open and navigate to your standard Documents folder.
Ultimate Guide to Fixing the "Prototype 2 Failed to Save Data" Error
Open your Steam library, right-click on Prototype 2 , select , then Browse local files . This will open the folder where the game is installed. This forces a full resync of your cloud data
Prototype 2 , the open-world action-adventure game developed by Radical Entertainment, is a beloved title known for its high-octane gameplay. However, many players on PC have encountered a frustrating issue: . When you try to save, you might receive an error message, or simply find that your progress has vanished upon returning to the game.
If your computer automatically backs up the Documents folder to Microsoft OneDrive, the game may fail to recognize the file path. Prototype 2 expects a local path and struggles with virtualized cloud paths.
Modern security suites actively block games without valid, modern publisher certificates from writing data to your storage drive. Adjusting these permissions is usually the most effective response.