Navigate to your Assassin's Creed Unity installation directory (e.g., C:\Program Files (x86)\Ubisoft\Ubisoft Game Launcher\games\Assassin's Creed Unity ) and select it. Step 3: Verify Game Files via Ubisoft Connect or Steam
, do not download replacement DLLs from third-party sites, as these are often meant for "cracked" versions and may cause crashes. Ubisoft Connect : Click the game, go to Properties , and select Verify files : Right-click the game > Properties Installed Files Verify integrity of game files
Most modern antivirus applications—including , Malwarebytes , and Avast —frequently isolate crack or launcher files during game installation. For Windows Defender: Open the Windows Start Menu and type Windows Security . Click on Virus & threat protection . Select Protection history . For Windows Defender: Open the Windows Start Menu
Click on the item, select , and click Allow on device or Restore . Step 2: Set an Antivirus Exclusion for the Game Folder
If you encounter a "DLL not found" or "missing" error, follow these steps in order: Click on the item, select , and click
Right-click the game in your Library , select Properties > Installed Files > Verify integrity of game files . 4. Update Supporting Software
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 . Click on the item
: If you own the game through a launcher like Ubisoft Connect or Steam, use the Verify Files feature to automatically redownload any missing DLLs.
Locate the uplay_r1_loader64.dll file sitting inside this subfolder.
The file uplayr1loader64.dll is part of . It helps verify that your copy of Assassin’s Creed Unity is legitimate and connects the game to your Ubisoft account.
To stop Windows from instantly deleting your newly restored file upon launching the game, you must configure a permanent folder exception.