Prototype 2 Failed To Save Data Fix Exclusive [2021] < Best ⇒ >

Make sure the username contains only English letters (no special characters, symbols, or non-Latin alphabet characters).

Knowing these details will help me pinpoint the exact fix for your PC. Share public link

Don't touch slot-A.bin or slot-B.bin —those are your actual story progress saves. Deleting the profile file forces the game to generate a fresh, clean configuration. 4. Create a Local Administrator Account

Unlike the first game’s Alex Mercer, this bug doesn't wear a hoodie—it hides in Windows permissions. And the "Verify Integrity of Game Files" trick? That’s for amateurs. Here is the fix that actually works (and no, you don't need to disable your antivirus). prototype 2 failed to save data fix exclusive

Standard administrator privileges may not be enough; you must apply the setting for all user profiles. Steam Community Right-click prototype2.exe in the game folder and select Properties Compatibility tab and click Change settings for all users Run this program as an administrator in the new window that appears and click Steam Community 3. Disable OneDrive Syncing OneDrive frequently locks the Documents\Activision\Prototype 2

If the game was saving but suddenly stopped, a corrupt profile.bin might be the culprit.

: Check the box for Run this program as an administrator . Apply changes : Click Apply and then OK . Adjust Windows Defender Settings Make sure the username contains only English letters

If you use Microsoft OneDrive, your Documents folder might be constantly syncing to the cloud. This sync process can lock the Prototype 2 save files at the exact millisecond the game tries to modify them, resulting in a failed save message.

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.

Steam or OneDrive locks the save file while the game tries to write to it. Deleting the profile file forces the game to

The game tries to save to a specific user folder. If your Windows username contains spaces or special characters, or if the folder simply doesn't exist, the game crashes the save process.

Alternatively, right-click your Documents folder, go to Properties, and ensure it is not set to Steam Community 4. Create a Local User Account (Last Resort)