A clean installation of the launcher often replaces missing API loaders.
If you encounter a "uplay_r1_loader64.dll was not found" message, follow these verified solutions: 1. Restore the File from Quarantine uplay_r1_loader64.dll
Before downloading anything, check if your antivirus has blocked the file. Open (or your preferred antivirus). Go to Virus & threat protection > Protection history . Look for uplay_r1_loader64.dll in the list. A clean installation of the launcher often replaces
: Malicious software or sudden system shutdowns can damage the registry or the file itself. How to Fix uplay_r1_loader64.dll Missing Errors uplay_r1_loader64.dll
Platforms like Steam or Ubisoft Connect have built-in tools to repair missing components.
: Go to the game's page, select Properties , and click Verify files under "Local files".