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.

Modern antivirus software (including Windows Defender) often identifies uplayr1loader64.dll as a because of its DRM behavior.

Your antivirus likely flagged the DLL as a false positive. Here’s how to restore it:

Backup your registry first (File → Export).

Now launch Ubisoft Connect as admin, then start the game.