How To Fix Uplayr1loader64dll Error In Assassin 39s Creed Unity New |verified| May 2026

Download the latest version of the Ubisoft Connect Desktop App.

Alternatively, use the feature in the Ubisoft Connect library by right-clicking Assassin's Creed Unity and selecting Properties > Local Files > Verify files . System-Wide Troubleshooting

Open (or your specific antivirus software). Go to Virus & threat protection > Protection history . Locate the entry for uplay_r1_loader64.dll . Click Actions and select Restore . Download the latest version of the Ubisoft Connect

Look for a subfolder named or 3DM (common in specific digital distributions). Copy the uplay_r1_loader64.dll file found there.

Some versions of the game include a backup of the necessary DLL files within the installation directory itself. Navigate to your main Assassin’s Creed Unity game folder. Go to Virus & threat protection > Protection history

Install it over your existing version to repair missing components.

To fix the error in Assassin's Creed Unity , you typically need to restore the file from your antivirus quarantine , manually replace it from the game's internal folders, or reinstall the Ubisoft Connect client . This error occurs because the file, which is a critical part of the Ubisoft API loader, is often flagged as a "false positive" by security software and deleted or blocked. Primary Fixes for Assassin's Creed Unity 1. Restore from Antivirus Quarantine Look for a subfolder named or 3DM (common

To prevent it from happening again, add the Assassin’s Creed Unity installation folder to your antivirus list. 2. Manual Replacement from Game Folders

Because this DLL is a part of the Ubisoft Connect (formerly Uplay) ecosystem, a corrupted client can cause the error.