Modern multi-core CPUs and updated OS architectures confuse the game’s dated engine. Step-by-Step Fixes for the Save Error
If you have applied all the file permission fixes and the game still fails to save (or crashes during saving), your processor might be too fast for the game engine. Prototype 2 struggles with CPUs that have more than 4 or 8 logical processors. How to Limit CPU Affinity via Task Manager
Another highly effective community fix is a modified prototypeenginef.dll . This custom file unlocks hidden graphics options, fixes low FPS and mouse stuttering, and specifically addresses AMD graphics card issues. Search for the latest version from the Overclockers.ru forums, being careful to choose the correct version for your graphics card (AMD or NVIDIA). prototype 2 failed to save data fix exclusive
Windows Security includes a feature designed to prevent ransomware from changing your folders. It frequently mistakes the save mechanics of Prototype 2 for malicious activity, blocking the creation of the save files.
If you have tried everything else—reinstalling, running as admin, or disabling antivirus—this user-verified method from a Reddit thread has proven successful where others fail. Modern multi-core CPUs and updated OS architectures confuse
We’ve all been there. You’ve just spent 45 minutes tearing through a Blackwatch base, consumed a dozen soldiers, and finally unlocked that badass form. You hit "Save," quit to desktop feeling like a god... only to come back to a screen that says "New Game."
: Open the Activision folder and create a new folder inside it named exactly Prototype 2 . How to Limit CPU Affinity via Task Manager
Find your game folder (usually Steam\steamapps\common\Prototype 2 ). Right-click prototype2.exe and select . Go to the Compatibility tab. Check Run this program as an administrator .
If the basic steps fail, the game often crashes during the save process because it can't handle high-refresh-rate monitors or modern CPUs.