Prototype 2 Failed To Save Data Fix Exclusive -

Fix: Prototype 2 Fails to Save Data (Exclusive) — Step-by-step guide

Run as Administrator:

Right-click the prototype2.exe and select "Run as Administrator."

Create a Local Account

If the standard permission fixes fail, creating a fresh local Windows account often resolves deep-seated permission conflicts that prevent saving. :

Guide: Fixing “Failed to Save Data” in Prototype 2 (PC)

• If adding version columns or schema changes, use backward-compatible migrations and feature flags.