Delete any leftover launcher cache files located in C:\Program Files (x86)\Ubisoft\Ubisoft Game Launch .
the latest Microsoft Visual C++ Redistributable packages (both x86 and x64 architectures). Install the packages and reboot your computer. Delete any leftover launcher cache files located in
: In some versions of the game, a backup of this file exists within the installation directory, often in a folder named NoDVD , SKIDROW , or 3DM . Copy the uplay_r1_loader64.dll from there and paste it into the main game folder where ACU.exe is located. often in a folder named NoDVD
🧠 Why this works : Antivirus sometimes quarantines Uplay DLLs thinking they’re hack tools. Delete any leftover launcher cache files located in
Are you playing a or a modded/repacked version of the game?