The "uplay_r1_loader64.dll" error usually means the game cannot find or load Ubisoft's Uplay/Ubisoft Connect runtime files. That can happen if the DLL is missing, corrupted, blocked by security software, or the game/client installation is mismatched. Below is a concise, ordered troubleshooting guide to resolve it.
Even after restoring the file, the error lingered. It turned out the file was corrupted. Elias had one final trick up his sleeve, the "Surgical Fix." How to fix "uplay_r1_loader64
To prevent similar errors in the future: Download the latest VC++ redistributable all-in-one (from a
Step 4: Verify Game Files
He hit "Verify Files" under the game properties. The bar filled up, checking for corruption. Result: All files verified. The error persisted. To prevent similar errors in the future: Last
Click the Actions button and select Restore or Allow on device.