This usually happens for three reasons:
Prototype 2 was coded for older file architectures. Often, the game fails to automatically create its required save folder upon installation. Creating it manually usually bypasses the error immediately. Press Windows Key + E to open File Explorer.
To resolve the "failed to save data" issue in Prototype 2, try the following solutions:
Microsoft OneDrive automatically syncs your Documents folder to the cloud. When Prototype 2 tries to write a save file, OneDrive may instantly lock the file to upload it, causing a data collision that forces the game to trigger a "failed to save data" prompt. prototype 2 failed to save data fix
Windows may be blocking the game from writing to your Documents folder as a security measure.
If not? Let’s get surgical.
In the tab, check Run this program as an administrator . This usually happens for three reasons: Prototype 2
In the folder that opens, find and delete the file named profile (it may be listed as profile.bin ).
Prototype 2 often fails to save data on modern Windows 10 and 11 systems because it cannot properly access the Documents folder due to modern security settings, administrative restrictions, or conflicts with high-core-count processors. 1. Grant Administrative Privileges
Create a new folder inside it and name it exactly Prototype 2 . Launch the game and attempt to save. 6. Adjust Read-Only Folder Attributes Press Windows Key + E to open File Explorer
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OneDrive often takes over Documents folder, causing permission conflicts.