While the 4GB patch fixes the memory ceiling, Fallout: New Vegas requires a "trifecta" of fixes to run perfectly on Windows 10 and 11.

A modern plugin that improves stability and performance. Mod Manager (Vortex): Essential for managing load orders. Troubleshooting the Patcher

: The EGS version requires an additional step called the Epic Games Patcher to downgrade the executable so it can be modded and patched.

Download the from Nexus Mods. While often called an "8GB patch" in community parlance, the industry-standard patcher specifically enables 4GB+ usage. 3. Applying the Patch