Open the Malwarebytes Application and click the . Click on the Allow List tab located at the top. Select Add , then click Allow a file or folder .
The "uplay_r1_loader64.dll" error usually means the game cannot find or load Ubisoft's Uplay/Ubisoft Connect runtime files. That can happen if the DLL is missing, corrupted, blocked by security software, or the game/client installation is mismatched. Below is a concise, ordered troubleshooting guide to resolve it.
Sometimes the Ubisoft Connect client itself is the problem. Reinstalling it can refresh the required DLLs.
To fix the error in Assassin's Creed Unity , you must restore the missing file from your antivirus quarantine or re-extract it from the game's original backup files (such as the NoDVD folder) , as third-party security software frequently flags it as a false positive. Open the Malwarebytes Application and click the
Sometimes the loader fails because your Windows OS is missing the background environments needed to process C++ scripts.
Result: The error changed. Now it said, "Uplay is not running." Progress, but not a victory.
This is the most frequent cause of the error. Many antivirus programs mistakenly flag uplay_r1_loader64.dll as a "false positive" and move it to quarantine, preventing the game from seeing it. The "uplay_r1_loader64
If you are using a repacked version (like FitGirl) and have a NoDVD folder within your game directory: Go to your Assassin's Creed Unity installation folder.
Open your and right-click on Assassin's Creed Unity . Select Properties from the context menu. Go to the Installed Files tab.
Note: If you use a third-party application like Malwarebytes, open its local dashboard, navigate to the Quarantine section, select the file, and restore it manually. Step 2: Extract the Original File via NoDVD Backup Folder Sometimes the Ubisoft Connect client itself is the problem
Reinstall the client; it should automatically restore missing Uplay API files like uplay_r1_loader64.dll 4. Manual DLL Replacement
Open (type "Windows Security" in the start menu). Go to Virus & threat protection . Click on Protection history .