Disclaimer: This fix is intended for legally purchased copies of Uncharted 4: Legacy of Thieves Collection. Modifying game files may violate EULAs for online components (multiplayer is not affected as it is P2P with no anti-cheat). Proceed at your own risk.
Uncharted 4 is a demanding title, but thanks to community efforts, the provides a reliable fix for the AVX2 issue on older hardware.
Corruption during installation can cause launch failures. In Steam, right-click Uncharted -> -> Local Files -> Verify integrity of game files . Performance Considerations for Older CPUs
The "new" fix for Uncharted 4 in 2026 isn't necessarily a new patch, but rather the refinement of the coupled with the v1.3+ patches that handle shader compilation better.
On , Iron Galaxy Studios released the third major patch for Uncharted: Legacy of Thieves Collection on PC, bringing the game to version 1.3.20812 . In the patch notes, a crucial line read: "Added support for older CPUs without AVX2 feature support" . This is the most elegant solution because it requires no third-party tools or complex configuration.
If you are running an archived version of the game or encounter persistent configuration errors on a specific system configuration, alternative workarounds exist. Method 1: Intel Software Development Emulator (SDE)
[ Launch Game ] │ ┌───────────────┴───────────────┐ Does CPU support AVX2? Does CPU lack AVX2? │ │ ▼ ▼ [ Standard AVX2 Pipeline ] [ Fallback Executable ] • High performance math • Alternative instruction sets • Optimizations active • u4-l.exe / tll-l.exe active
The best and only reliable fix for the AVX2 requirement in Uncharted 4 on PC is already built into the game. By simply ensuring your game is updated to the latest version and launching the appropriate -l.exe file, you can bypass the AVX2 check and enjoy the game. The issue is effectively .
When launching, the game either shows a blank screen, crashes instantly, or gives an error message related to instruction sets.
When you launch the collection via Steam or the Epic Games Store, the game checks your CPU capabilities.
In the "Target" field, add -hsw -- at the end, followed by the path to your u4.exe .