If the error persists, proceed with the solutions below.
Are you playing a or a modded/repacked version of the game?
If that doesn’t work, antivirus is almost certainly the cause. The issue is not a broken PC – it’s an overzealous security program or a partial update.
Download and run the DirectX End-User Runtime Web Installer .
Privilege conflicts can prevent Assassin's Creed Unity from accessing its own directory files. Navigate to the folder where ACUnity.exe is installed. Right-click on and select Properties . Switch to the Compatibility tab. Check the box next to Run this program as an administrator . Click Apply and then OK . To help narrow down the exact issue, let me know: If the error persists, proceed with the solutions below
: Sudden shutdowns, interrupted downloads, or disk errors can corrupt installation data.
Before diving into the fixes, it helps to understand why this error happens. The uplay_r1_loader64.dll file is a bridge between the game executable and Ubisoft's online services. The most common reasons this file goes missing include:
If the file isn't in your history, it may already be included in a subfolder within your game directory.
✅ Restoring the file from Windows Protection History and adding a folder exclusion is the most effective fix for this error. The issue is not a broken PC –
(or your third-party antivirus program like Avast, AVG, or Malwarebytes).
Go to the official Ubisoft Connect website and download the latest version of the installer.
By following these recommendations and solutions, players can minimize the occurrence of the uplay_r1_loader64.dll error and enjoy a smooth gaming experience with Assassin's Creed Unity.
A: This means your antivirus is automatically quarantining the file again. You need to add the entire Assassin's Creed Unity installation folder to your antivirus's "Exclusions" or "Whitelist." This will tell the antivirus to ignore that specific folder and its contents. Navigate to the folder where ACUnity
Run the installer as an administrator and complete the setup. Launch Ubisoft Connect, log in, and try starting the game. 4. Run the Game and Launcher as Administrator
Locate the entry for uplay_r1_loader64.dll (it may be labeled as a "severe" threat). Click and select Allow or Restore .
Only use this if other methods fail, and be sure to use a reputable source like DLL-files.com . Download the version of uplay_r1_loader64.dll .