Sounds like you're seeing the error "uplay-ach-earnachievement could not be located." Likely causes and fixes:

System configuration problems can prevent the Uplay client from functioning properly. To check for system configuration issues:

If verifying game files doesn't resolve the issue, try repairing the Uplay installation:

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Copy these files and paste them directly into the folder where your game's .exe file is located.

The most reliable fix for this specific error involves manually updating the specific loader DLL file that links the game to Uplay.

This specific error occurs because the game is looking for a function within a DLL file (usually uplay_r1_loader.dll ) that has been renamed, removed, or updated in the current version of Ubisoft's software. 🛠️ Quick Fixes for the Uplay Entry Point Error 1. Disable the In-Game Overlay

When the launcher updated, several core file paths and system communication rules changed, leaving older games looking for a specific achievement tracking system function that no longer exists in the current software code. Fortunately, you can fix this issue yourself using a few simple troubleshooting methods. Understanding the Root Cause

Every Windows application relies on Dynamic Link Libraries ( .dll files) to perform standard tasks without rewriting code from scratch. The error message specifically tells you that a game is looking for a function named uplay-ach-earnachievement inside one of these DLL files—usually uplay_r1_loader.dll or uplay_r1.dll —and failing to find it. This disconnect happens for one of three reasons: