The patch adds support for older CPUs by detecting the lack of AVX2 and automatically switching to a fallback executable ( u4-l.exe for Uncharted 4 or tll-l.exe for Lost Legacy).
Before downloading anything, confirm that your CPU lacks AVX2 but does support basic AVX. Download a free utility like . Look at the Instructions field on the CPU tab. Confirm you see AVX but do not see AVX2 . Step 2: Download the Fix Files
Consider this your heads-up. If you are still on a 2nd or 3rd generation Intel CPU, you can find remarkably cheap upgrades on the used market. For example, an Intel (4th Gen Haswell) not only supports AVX2 but is a massive performance jump over older Ivy Bridge CPUs and can be found for very reasonable prices on websites like eBay. uncharted+4+avx2+fix+free
One of the most reliable ways to bypass the AVX2 requirement is by using Intel's Software Development Emulator (SDE). While it sounds complex, the community has streamlined this process.
Disclaimer: Modding games and using third-party emulators carries inherent risks. Always back up your save files and game directories before altering code or replacing files. Are you playing the game through or Epic Games ? The patch adds support for older CPUs by
Uncharted 4 AVX2 Fix Free: How to Play on Older CPUs Uncharted: Legacy of Thieves Collection brought Nathan Drake's final adventure to PC, but its initial launch left many players with older processors (CPUs) unable to start the game. A specific technical requirement— instructions—prevented processors older than Intel's 4th Generation Haswell or older AMD models from launching the title, resulting in an immediate crash or an "AVX2 not supported" error.
When the game first launched, it required CPU features that older processors lacked. The "fix" refers to a released by Iron Galaxy in November 2022 that removes the mandatory AVX2 requirement, allowing the game to run on older hardware by utilizing a fallback executable. Look at the Instructions field on the CPU tab
: Look for "Uncharted 4 AVX2 Fix" or "Legacy of Thieves AVX2 Bypass."
The PC gaming community quickly bypassed this arbitrary hardware restriction. Independent developers created a modified library file that emulates or reroutes the AVX2 instructions, allowing older CPUs to execute the game code. Step-by-Step Installation Guide
using updated antivirus software or VirusTotal before extracting them into your system directories. If you are ready to set up the fix, let me know: Which CPU model you are currently running Whether you bought the game on Steam or Epic Games
Unpack the SDE files into a dedicated folder on your PC.