On newer processors, having more than 4 or 8 cores can cause various glitches, including save failures. , and hit Enter. Advanced options Number of processors and select Restart your PC and try saving again. Save File Locations
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Operational notes
Prototype 2 stores your save preference linked to your specific Windows User SID. If you ever reinstalled Windows without formatting, or changed your Microsoft account to a local account, the SID becomes orphaned.
This error primarily affects modern operating systems like Windows 10 and Windows 11 because native security features block the aging 2012 game from writing to your local Documents folder. prototype 2 failed to save data fix exclusive
Everyone says this. But you need to do it specifically.
The core of the issue lies in how Windows 10/11 handles user permissions and how Prototype 2 interacts with your Documents folder. Typical culprits include: On newer processors, having more than 4 or
If you are stuck in this saving loop, the issue is rarely a corrupted game installation. Instead, it is almost always caused by how modern Windows operating systems handle folder permissions, user accounts, and antivirus protection.