Set the .exe to "Run as Administrator" and enable Compatibility Mode (Windows 7/8).
But for a significant chunk of PC gamers, that power fantasy has been interrupted by a message more terrifying than any Evolved:
To fix the "failed to save data" error in Prototype 2 , you generally need to
No. It’s a permissions error. But fixing it requires a little digital surgery.
Don’t let a permission error stop you from finishing the story of Sgt. James Heller.
Go to the game's installation folder (e.g., C:\Program Files (x86)\Steam\steamapps\common\Prototype 2 ). Right-click prototype2.exe and select .