How To Fix Uplayr1loader64dll Error In Assassin 39s Creed Unity New =link= File

How to Fix the uplay_r1_loader64.dll Error in Assassin’s Creed Unity (New Guide 2026)

Error Code: uplay_r1_loader64.dll is missing / Cannot find uplay_r1_loader64.dll / The program can't start because uplay_r1_loader64.dll is missing from your computer

If you are trying to launch Assassin’s Creed Unity on your Windows PC and are greeted by a pop-up error mentioning uplay_r1_loader64.dll, you are not alone. This is one of the most persistent and frustrating launch issues for this particular title.

The good news? This error is almost never a sign of a failing hard drive or corrupted Windows system files. It is typically a logic conflict between Ubisoft’s legacy DRM (Digital Rights Management), your antivirus software, and Windows updates. How to Fix the uplay_r1_loader64

This guide provides seven proven methods to fix this error, ranging from a simple reboot to advanced manual registration of DLL files. Follow these steps in order for the best results.

Solution 2: Verify Integrity of Game Files (Repair Missing DLL)

If uplayr1loader64.dll is truly missing or corrupted, the launcher will restore it. Solution 2: Verify Integrity of Game Files (Repair

Reinstall or update Ubisoft Connect (Uplay)

1. Close the game and Ubisoft Connect.
2. Download the latest Ubisoft Connect installer from Ubisoft’s site and run it.
3. Choose Repair if offered; otherwise uninstall Ubisoft Connect via Settings → Apps, then reinstall.
4. Sign in and let it update, then launch the game.

PROCEDURE C: ANTIVIRUS EXCLUSION

Sometimes Windows Defender or 3rd party Antivirus flags the Ubisoft loader as a "False Positive" and quarantines the DLL file, making it inaccessible to the game.

1. Open Windows Security (or your 3rd party AV).
2. Check the Protection History / Quarantine.
3. If you see uplay_r1_loader64.dll listed as a threat, select Restore or Allow on Device.
4. Add the game installation folder to your Antivirus Exclusion List to prevent future deletions.

Preventive tips

• Keep Ubisoft Connect and the game updated.
• Avoid third‑party DLL download sites.
• Use reputable antivirus and whitelist game folder if false positives occur.
• Back up saves to cloud or external storage before making major changes.

If you want, I can create step‑by‑step commands/scripts for SFC/DISM or help draft a support message to Ubisoft with the logs. Close the game and Ubisoft Connect

Method 3: Replace the UplayR1Loader64.dll File

1. Go to the C:\Program Files (x86)\Ubisoft\Ubisoft Game Launcher folder.
2. Find the UplayR1Loader64.dll file and rename it to UplayR1Loader64.dll.old.
3. Download a new copy of the UplayR1Loader64.dll file from a trusted source (e.g., the official Ubisoft website).
4. Place the new UplayR1Loader64.dll file in the same folder.

Permanent exclusion:

• Go to Virus & threat protection → Exclusions → Add exclusion → Folder.
• Paste: C:\Program Files (x86)\Ubisoft\Ubisoft Game Launcher\games\Assassin's Creed Unity\
• Also exclude: C:\Program Files (x86)\Ubisoft\Ubisoft Game Launcher\

Then re-enable antivirus.

Step-by-Step:

1. Close Assassin’s Creed Unity and Ubisoft Connect completely (check your system tray).
2. Open Ubisoft Connect normally. It should automatically check for updates. If not:
   • Click the three lines (menu) in the top-left.
   • Go to Settings → Downloads.
   • Click Check for updates.
3. If that does nothing, reinstall the launcher:
   • Press Windows + R, type appwiz.cpl, and press Enter.
   • Find Ubisoft Connect in the list, right-click, and select Uninstall.
   • Do not uninstall the game.
   • Download the latest Ubisoft Connect from the official website and install it.
   • Restart your PC and try launching the game again.