To fix the uplay_r1_loader64.dll Assassin's Creed Unity , you typically need to restore the file from your antivirus quarantine or manually place it back into the game folder, as it is often flagged as a false positive 1. Restore the File from Antivirus Quarantine
Most often, Windows Defender or third-party antivirus software identifies the DLL as a threat and removes it during installation or when you launch the game. Windows Security (or your specific antivirus software). Navigate to Virus & threat protection Protection history Locate the entry for uplay_r1_loader64.dll (it may be labeled as "Severe").
: Add the Assassin's Creed Unity installation folder to your antivirus Exclusions to prevent it from being deleted again. 2. Copy from the "NoDVD" or Crack Folder To fix the uplay_r1_loader64
If you are using a specific version of the game (like a repack), the file is often included in a subfolder within the main directory. Open the main Assassin's Creed Unity installation folder. Look for a folder named uplay_r1_loader64.dll inside that subfolder. it directly into the main game directory where the file is located. 3. Reinstall Ubisoft Connect (For Official Versions)
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 Fix 4: Disable Conflicting Software Common conflicts:
Reinstall the client; it should automatically restore missing Uplay API files like uplay_r1_loader64.dll 4. Manual DLL Replacement
As a last resort, you can download the file manually, though this is less recommended due to potential security risks. Download the 64-bit version of uplay_r1_loader64.dll from a reputable source like DLL-files.com Extract the ZIP file and copy the Paste it into the Assassin's Creed Unity main installation folder Uplay r1 loader64 dll missing or not found Fix Discord Overlay – Disable in Discord Settings →
Here’s a step-by-step guide to fixing the uplay_r1_loader64.dll error in Assassin’s Creed Unity. This error usually appears when launching the game and indicates a missing, corrupted, or blocked Uplay/Ubisoft Connect DLL file.
Common conflicts:
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.
Incorrect compatibility settings can block DLL loading.
ACU.exe → Properties.