If you are seeing an error for (or the similar upc_r2_loader64.dll ) in Assassin's Creed Valhalla
The full error often reads:
Go to "Games," select AC Valhalla, click "Properties," and choose Verify files Right-click the game in your Library > Properties Installed Files Verify integrity of game files 4. Manual Replacement (Advanced) If the file is truly gone, you can manually replace it. assassin 39-s creed valhalla uplay r2 loader64.dll
Clear the cache by deleting the folder at C:\Users\[Username]\AppData\Local\Ubisoft Game Launcher . uplay_r2_loader64
Errors involving this file typically occur when it is missing, corrupted, or incorrectly flagged as a "false positive" by security software due to how it hooks into the game executable. Common Fixes for "uplay_r2_loader64.dll Missing" Verify the game files via Ubisoft Connect
: To prevent this from happening again, add your Assassin's Creed Valhalla installation folder to your antivirus Exclusion list. 2. Verify Game File Integrity