: The game now detects if a CPU lacks AVX2 support and automatically switches to a fallback executable. Uncharted 4 uses u4-l.exe for older CPUs. The Lost Legacy uses tll-l.exe for older CPUs.
Missing Visual C++ runtimes. Fix: Install the latest VC++ Redistributable from Microsoft (both x86 and x64 versions).
Here is the harsh reality:
SDE is very slow (20–30 FPS max). Only for low-resolution testing, not full playthroughs. uncharted 4 avx2 fix
: Search for the "Uncharted 4 AVX2 Support" mod or "Intel SDE" wrapper specifically configured for the Legacy of Thieves Collection.
If you are still experiencing issues, ensure your game is updated to the latest version via Steam or the Epic Games Store. If you are on an ARM-based Windows PC, the October 2025 Windows 11 update introduced , which enables AVX and AVX2 emulation, further expanding compatibility for modern non-x86 hardware.
If you aren’t sure whether you need this guide, check your CPU: : The game now detects if a CPU
: The game now supports older CPUs that lack the AVX2 instruction set.
Future updates to Uncharted 4 (if any) will likely break both fixes. Block the game from updating via Steam’s “Only update this game when I launch it” setting, and always launch via your .bat file or patched EXE.
This method does not emulate; it simply deletes the CPU check. The game may behave unpredictably (random physics glitches, audio popping) if it tries to use an AVX2 instruction that doesn’t exist. However, it offers native performance. Missing Visual C++ runtimes
Released on GitHub and gaming forums (2023), the fix consists of:
This feature allows the game to remain accessible to players with hardware that does not support the AVX2 instruction set, such as Intel Sandy Bridge (i7-2600K) or Ivy Bridge (i7-3770K) processors. Automated Hardware Detection
The problem was that AVX2 was only introduced in 2013 with Intel's Haswell (4th Gen) and AMD's Excavator architectures. Players using incredibly popular legacy gaming CPUs—such as the iconic Intel Core i7-2600K, i7-3770, or AMD FX-series chips—found themselves completely locked out. Even though these older, high-end processors possessed the raw horsepower to run the game, the game crashed because the hardware could not parse the compiled code instructions. The Official Solution: Patch 3 (v1.3.20812)