Uncharted 4 Avx2 Fix Jun 2026

However, the celebration was short-lived for a significant portion of the PC community. Upon launch, many players were greeted not by Nathan Drake’s witty banter, but by a crash to desktop or an immediate error message. The culprit? A missing instruction set known as .

Run the game executable through the emulator using the following command structure: sde.exe -- u4.exe (replace u4.exe with the exact path and name of the Uncharted launcher executable). Potential Risks and Performance Expectations

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.

(Advanced Vector Extensions 2) is a set of CPU instructions introduced by Intel with the Haswell architecture in 2013 and by AMD with the Excavator architecture in 2015 (and widely adopted in Ryzen). These instructions allow the CPU to perform mathematical operations on large chunks of data simultaneously (SIMD—Single Instruction, Multiple Data).

AVX2 allows CPUs to process larger blocks of data simultaneously. Modern game engines use these instructions to optimize heavy calculations. When Uncharted 4 attempts to run an AVX2 command on an unsupported CPU, the processor does not understand the instruction. This causes an unhandled exception, resulting in an instant crash to the desktop without an error message. Share public link uncharted 4 avx2 fix

This created a significant problem for players who had capable GPUs like the GTX 1060 or RX 580 and found that their older, but still powerful, CPUs were the sole bottleneck preventing them from enjoying the game.

If you are running on older hardware, ensure your graphics drivers are updated to the latest version, and consider lowering graphic settings to "Low" or "Medium," particularly shadows and volumetric lighting, to ease the load on the processor. Final Troubleshooting Steps

After the update, players on "legacy" processors have reported the game running at stable framerates (e.g., 40–60 FPS depending on the GPU), whereas it previously wouldn't launch at all. Alternative Workarounds (If Patching Isn't Possible)

The gaming community quickly developed custom, unofficial patch scripts and modified .exe or .dll files to bypass the AVX2 check. These fixes generally work by rerouting the AVX2 commands or replacing them with standard AVX or SSE instructions that older CPUs can read. However, the celebration was short-lived for a significant

If you get a “DLL not found” error, ensure you have the latest Visual C++ Redistributables (All-in-One pack from TechPowerUp).

Open the downloaded ZIP or RAR file using a decompression tool.

: You will typically find files like com_intel_sde.dll or a modified u4.exe .

Run the game directly through the new launcher stub or via your game client. Performance Impact and Trade-offs A missing instruction set known as

Now, with these fixes in your arsenal, you can finally dive into the thrilling world of Uncharted 4 on your PC.

Open Task Manager, right-click Uncharted 4, and set priority to "High." Troubleshooting Common Issues

This allows older hardware to run the game without "hacks," though you may still experience lower frame rates or occasional stutters compared to modern CPUs that can utilize the full AVX2 path. Manual Fixes and Workarounds

As of , the developer Iron Galaxy released an official update (Patch v1.3) that specifically addressed this issue.