If the file was completely deleted and cannot be found in your quarantine history, you can force your game store platform to redownload the missing component. For Steam Users:
If the DLL is still missing, reinstalling the launcher can force the correct files to be reacquired. Uninstall via the Control Panel. If the file was completely deleted and cannot
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Start with the basic solutions—checking your antivirus and reinstalling Ubisoft Connect. In the vast majority of cases, one of these first steps will immediately get you back to playing. If the error persists, don't hesitate to move on to verifying your game files or updating your system runtimes. For many, manually placing the DLL file or adjusting Windows permissions will be the final key to success. With a little patience and this guide as your map, you'll be synchronizing viewpoints and navigating the tumultuous streets of Paris in no time.
If you own the game officially through Ubisoft or Steam, the error may be caused by a corrupted Ubisoft Connect installation. Ubisoft Connect from your Control Panel. Download the latest version from the Ubisoft website
Look for uplay_r1_loader64.dll or any detection related to ACU.exe . Select the file and choose or Allow . 2. Exclude the Game Folder from Antivirus