If you are using Steam, open Steam > In-Game > toggle off Enable the Steam Overlay while in-game .
8 additional answers. ... UPlay or AC 4. The error points to UPlay, and apparently the on-line 'achievement' BS that goes with it, Microsoft Learn uplay-ach-earnachievement could not be located
. Ensure they are not running in "Compatibility Mode" for an older OS, as this can cause library loading errors. Manual DLL Replacement (Last Resort) uplay_r1_loader.dll If you are using Steam, open Steam >