Here is a detailed review of UplayR2Unlocker, focusing on what it is, how it works, its features, and the risks involved.
: Find the file named upc_r2_loader.dll (or upc_r2_loader64.dll ) and rename it to upc_r2_loader_o.dll (adding an _o for "original").
The project is typically hosted on GitHub. Being open-source allows the community to verify that the code does not contain malware or trojans, which is a significant advantage over random "unlocker" .exe files found on piracy sites.