Guide: Fixing Uncharted 4 Crashes or Performance Issues with AVX2

This guide explains why Uncharted 4 can crash or fail to launch on some PCs due to AVX2 instruction issues, and gives a clear, step-by-step set of fixes you can try. I assume you’re running the PC version on Windows.

The Uncharted 4 AVX2 fix is a testament to the PC gaming community's refusal to let good hardware go to waste. While it isn't a perfect solution, it allows players on legendary older chips to experience Nathan Drake’s final adventure without needing a total system overhaul.

It is important to manage your expectations when using an AVX2 fix. Because your CPU is performing a "translation" task on top of running a demanding game, you will likely experience:

  1. What is the technical mechanism of the AVX2 fix?
  2. What is the performance impact on AVX2-capable vs. incapable hardware?
  3. Does the fix introduce stability or correctness issues?
  4. What broader lessons does this hold for game preservation?

Removing the initial hardware "handshake" that prevents the game from launching on unsupported CPUs. Performance & Stability Playability:

Hardware Reality Check: Is it worth it?

Before you spend three hours tinkering with Intel SDE, ask yourself what CPU you actually have.

for budget-conscious gamers or enthusiasts keeping older rigs alive. It proves that the AVX2 requirement was more of a "soft" optimization gate rather than a fundamental necessity for the game to function.

4. The "Black Screen" Bug If the screen goes black after the Naughty Dog logo, delete the psolib folder in Documents\Uncharted Legacy of Thieves Collection\. The fix sometimes corrupts the shader cache. Let the game rebuild it.