This bug prevents the game from creating or modifying save files in your Documents folder, resulting in lost progress and broken autosaves.
Right-click your Documents/Activision folder, select Properties, uncheck Read-only , and click Apply to all subfolders.
Click and browse to your prototype2.exe to whitelist it.
Corrupted or missing game configuration files can break the save mechanics entirely. Steam can automatically scan and replace these files. Open your . Right-click on Prototype 2 and select Properties . Select the Installed Files (or Local Files ) tab. prototype 2 failed to save data fix
Sometimes, Windows updates alter folder attributes, marking the user Documents directory as "Read-Only." This prevents the game from creating the subfolders it requires to house save files.
Add the save game directory path to the exclusion list: C:\Users\[YourUsername]\Documents\Activision\Prototype 2 . 4. Fix OneDrive Document Syncing Conflicts
Alternatively, you can temporarily select for 2 hours from the main OneDrive menu right before you launch the game. 5. Manually Create the Save Directory Structure This bug prevents the game from creating or
6.3 Long-term architectural improvements (1–3 months)
Steam Cloud Synchronization can sometimes loop and corrupt the local save profile, preventing the game from overwriting existing data.
Permissions issues can prevent the game from creating its save directory. Corrupted or missing game configuration files can break
: Press the Windows Key, type Controlled folder access , and press Enter.
Multiple contributing issues were discovered: