: Older guides suggest the "New Vegas Stutter Remover (NVSR)," but this causes frequent crashes on modern Windows systems; use Steam Deck
If you see these, your game is hitting the 2GB/4GB wall. You need the fix. fnv 8gb patch fix
Windows 11 sometimes applies a "compatibility shim" to older games, which interferes with memory management. You can remove this via the Registry Editor. Navigate to: HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers Look for an entry for FalloutNV.exe and delete it. : Older guides suggest the "New Vegas Stutter
In the vanilla game, with no mods installed, this 2GB ceiling wasn’t a major issue. As soon as you start adding mods, however, that changes. You can remove this via the Registry Editor
Stops the infamous Out of Memory desktop crashes during heavy action.
While the 4GB patch fixes the memory ceiling, Fallout: New Vegas requires a "trifecta" of fixes to run perfectly on Windows 10 and 11.
This leaves the remaining 4GB+ of your system RAM completely free for Windows and background applications, ensuring the game gets a dedicated, uninterrupted pool of 4GB. Step-by-Step Installation Guide
