Uncharted 4 Avx2 Fix Jun 2026

Sometimes, modern CPUs that do support AVX2 still crash due to how Windows handles instruction execution and memory management. Adjusting your security settings can resolve false-positive crashes. Click the Windows Start menu and type . Switch to the Program settings tab.

Run game as Admin and disable overlays

Open Steam, right-click on Uncharted: Legacy of Thieves Collection , select Manage , and click Browse local files . uncharted 4 avx2 fix

If your CPU lacks AVX2 support, you are not completely out of luck. Here is a comprehensive guide on why this crash happens and how you can bypass the requirement to run Uncharted 4 . Why Does Uncharted 4 Require AVX2?

The Intel SDE will intercept AVX2 instructions, translate them into multiple AVX or SSE instructions, and feed them to your CPU. The game will launch. Sometimes, modern CPUs that do support AVX2 still

The proxy DLL often relies on specific runtimes. Install the "All-in-One" VC++ package from TechPowerUp or Microsoft directly.

Last-resort system changes

Processors older than Intel’s Haswell architecture (4th Gen) or AMD’s Excavator architecture lack this instruction set. This guide explains how to bypass this hardware restriction using community-made emulation fixes. Why Uncharted 4 Requires AVX2

Use a library like AVX-512 Emulator or Intel's XED to parse the binary at runtime. The Logic: Switch to the Program settings tab

The fix installs a global hook on __cpuid / __cpuidex . When the game queries AVX2 support (leaf 7, EBX bit 5), the hook returns 0 , forcing the engine into a legacy SIMD path. Additionally, the hook masks OSXSAVE bits to prevent AVX2 activation.