Simply updating the launcher within the app might not replace the corrupted DLLs. A fresh install is often required. How To Fix Ubisoft Connect Launcher Not Working / Opening

First, ensure that the Ubisoft Connect service is operational. Sometimes, service outages can cause issues like this. You can check the official Ubisoft website or their service status page for any ongoing issues.

Sometimes, the fix is a bit more specific. Keep these less common solutions in mind as well.

Some users have success by downloading a fresh copy of the DLL from reputable sources like DLL-files.com and pasting it into the game's executable folder.

The error message typically occurs when launching a Ubisoft game (such as Assassin's Creed , Far Cry , or Watch Dogs ).

Here are the steps to resolve the issue, ranked from the most effective to the least.

If you are currently facing this error, start by restarting both the game and Ubisoft Connect, then proceed through the troubleshooting steps above. Most cases resolve without needing to re-earn achievements.

The error "the procedure entry point could not be located" can be caused by several factors.

This is the number one cause reported across forums. Modern antivirus software, including the built-in Windows Defender, aggressively quarantines or deletes files it suspects might be harmful. Sometimes, it mistakenly flags a part of the game's DRM or a DLL file as a false positive. During installation or an update, your antivirus may have silently removed the uplay_r1_loader.dll file or prevented it from being properly created.

Permissions issues can prevent the game from properly accessing the DLL library, leading to "not located" errors.

Try renaming the uplay_r1_loader.dll inside the to uplay_r1_loader.dll.old .

Right-click the problematic Ubisoft game and select . Click the Installed Files tab. Select Verify integrity of game files . Method 3: Clean Install Ubisoft Connect

What does this actually mean? In simple terms, when you launch a Ubisoft game, it makes a call to a specific part of the game's code—a "procedure"—to tell the Ubisoft Connect (formerly Uplay) platform to track an achievement. The error indicates that the game is looking for this specific piece of code in a dynamic link library (DLL) file, but it cannot find it there. This is not a problem with the game's storyline or your saved progress, but rather a technical disruption in the communication between the game and Ubisoft's infrastructure that handles achievements and online features.