Windows often blocks uplayr1loader64.dll from loading due to permission restrictions.
ACU.exe (the game executable).Uplay.exe (or UbisoftConnect.exe) inside C:\Program Files (x86)\Ubisoft\Ubisoft Game Launcher\.Now launch Ubisoft Connect as admin, then start the game.
uplay_r1_loader64.dll. If you see it, proceed to Method 2. If not, continue below.Threat: uplay_r1_loader64.dll (often flagged as "IDP.Generic" or "WS.Reputation.1").Note for Windows Defender Users: Go to Virus & threat protection → Manage settings → Exclusions → Add or remove exclusions → Add the game folder.
To resolve this issue immediately:
If the issue persists after these steps, the error is likely due to a third-party software conflict (such as RivaTuner Statistics Server or MSI Afterburner) hooking into the game overlay. Temporarily disable these overlays to test.
To fix the uplay_r1_loader64.dll error in Assassin's Creed Unity
, you generally need to restore the file from your antivirus quarantine or manually replace it in the game's installation folder. This error typically occurs because the file—part of the Uplay API—is flagged as a false positive by security software and deleted or moved. 1. Restore from Antivirus Quarantine
Most uplay_r1_loader64.dll errors happen because Windows Defender or other antivirus programs (like Malwarebytes) have quarantined the file. Windows often blocks uplayr1loader64
Open your antivirus software (e.g., Windows Security > Virus & threat protection). Check the Protection History or Quarantine section.
Locate uplay_r1_loader64.dll, select it, and choose Restore.
Important: Add the Assassin's Creed Unity game folder to your antivirus exclusions list to prevent the file from being deleted again. 2. Manually Replace the DLL File
If the file is completely missing, you can manually replace it using files already on your computer or by downloading them from a reliable source.
Check Game Folders: Some versions of the game include a NoDVD or Support folder that contains a backup of the necessary DLL. Look for a file named uplay_r1_loader64.dll in these subfolders and copy it to the main game directory (where the .exe file is located).
Manual Download: If you cannot find a local backup, you can download the file from a trusted site like DLL-files.com. Extract the downloaded .zip and paste the .dll file directly into your game's installation folder. 3. Verify Game Files
If you own the game on a platform like Ubisoft Connect or Steam, you can use the built-in repair tool to automatically download missing files. Locate ACU
Ubisoft Connect: Go to your Library, select Assassin's Creed Unity, click Properties, and select Verify files.
Steam: Right-click the game in your Library, select Properties > Installed Files > Verify integrity of game files. 4. Update Supporting Software
Sometimes the error is caused by missing dependencies like the Microsoft Visual C++ Redistributable.
Go to Settings > Apps > Installed Apps and look for "Visual C++".
Choose Modify and then Repair for the 2010, 2012, or 2013 versions, as these are often required for older Ubisoft titles.
Note: If you replace the DLL and find your save files are missing, check C:\ProgramData\Orbit\720 (ensure "Hidden items" is enabled in File Explorer) to see if they were moved during the error. uplay_r1_loader64.dll free download - DLL-files.com
uplay_r1_loader64.dll Assassin's Creed Unity typically occurs because antivirus software, such as Windows Defender, mistakenly flags the file as a threat and quarantines it. This is especially common in certain repackaged versions of the game. 🛠️ Core Fix: Restore from Protection History Now launch Ubisoft Connect as admin, then start the game
The most direct solution is to recover the file from your system's quarantine. Open Windows Security : Search for it in your Start menu. Navigate to History Virus & threat protection Protection history Identify the File : Look for an entry involving uplay_r1_loader64.dll
or a "Severe" threat blocked around the time you tried to launch the game. and select 📂 Alternative: Internal Game Directory
If the file isn't in your history, many versions of the game include a backup within the installation folder. Locate Backup : Check for a folder named inside your main Assassin's Creed Unity directory. Copy & Paste : Copy the uplay_r1_loader64.dll
from that subfolder and paste it directly into the main game folder where the executable ( ) is located. 🛡️ Preventing Re-Deletion
To stop your antivirus from deleting the file again, you must add an In Windows Security, go to Virus & threat protection settings Manage settings Exclusions Add or remove exclusions Add an exclusion
and choose your entire Assassin's Creed Unity installation folder. ⚠️ A Note on External Downloads While sites like DLL-files.com