Before starting, it's always a good idea to restart your computer and update your graphics drivers.
If you share a minimal code example (save call + model shape + error messages or network response), I can produce a targeted fix and patch you can drop into your code.
If you’re using a non-Steam version, some older releases have a save bug. Look for an (e.g., SKIDROW v2 or RELOADED fixes). prototype 2 failed to save data fix
: Press the Windows Key, type Controlled folder access , and press Enter.
is a classic, but its age shows when running on modern Windows 10 and 11 systems. Before starting, it's always a good idea to
(not recommended for long-term security).
For , the fix is running as administrator + disabling OneDrive on the Documents folder. If that fails, manually creating the save folder with full permissions solves it. The error is not a game-breaking bug—it’s a Windows permission issue with older games. Look for an (e
Check the box next to Run this program as an administrator .
Go to the tab and click Unlink this PC temporarily to test if it fixes the game.
Prototype 2 , the open-world action-adventure game developed by Radical Entertainment, is a beloved title known for its high-octane gameplay. However, many players on PC have encountered a frustrating issue: . When you try to save, you might receive an error message, or simply find that your progress has vanished upon returning to the game.
Windows Security protocols frequently block older executables from writing new files to the primary C: drive. Granting administrative privileges allows the game to bypass these write restrictions.