Prototype — 2 Failed To Save Data Fix ((full))

The most common cause of this error is Windows Defender blocking the game from writing to your Documents folder.

The "failed to save data" error in Prototype 2 on PC is typically caused by Windows folder protection, permission issues, or modern hardware conflicts (high CPU core counts). Primary Fixes Allow Through Controlled Folder Access prototype 2 failed to save data fix

or pause syncing before launching the game. The most common cause of this error is

This is the most common fix. You must set both the game and its "all users" settings to run as admin. Steam Community Locate Executable : Go to your Steam library, right-click Prototype 2 Browse local files Primary Admin Setting : Right-click prototype2.exe Properties , go to the Compatibility tab, and check Run this program as an administrator Critical Extra Step : In the same tab, click Change settings for all users . In the new window that pops up, check Run this program as an administrator again. Click Steam Community 2. Configure Windows Controlled Folder Access This is the most common fix