Uplay_r164.dll Not Found or Untrusted System File [Solved]

Disable Windows Security during game installation

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Updated onApril 2, 2024

updated onApril 2, 2024

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Key notes

For fixing DLL errors, we recommend Fortect:

Fortect will search for an intitial version of your missing, corrupted or damaged DLL files that cause problems to your Windows OS and will replace it. Here is how to find them in 3 easy steps:

Theuplay_r164.dllis developed by Ubisoft and used by several Ubisoft Connect games, including Assassin’s Creed, Far Cry 4, The Division 2, and Watch Dogs, amongst others.

The two common errors associated with the file are,Easy Anti-cheat Untrusted system fileandThe code execution cannot proceed because uplay_r164.dll was not found. Reinstalling the game may fix this problem. Replacing the DLL will fix things in both cases. Let’s find out how!

How do I fix uplay_r164.dll error?

Before we start with the slightly complex solutions, try these quick ones:

1. Use a DLL repair tool

Your primary approach when faced withuplay_r164.dllnot found error is to get aneffective DLL repair tool.

2. Move the DLL to the game’s installation directory

Another option is to move the DLL into the game’s directory from another PC. It is found in the game’s folder and notSystem32, as is the case with system DLLs.

Copy it to an external drive (on the other PC) and paste it into the game’s folder. Also, move a copy of the DLL to the following location:C:\Program Files (x86)\Ubisoft\Ubisoft Game Launcher\uplay_r164.dll08

3. Make an exception for the game folder

While adding an exclusion to Windows Security, include any paths listed in the error message. This helps whenWindows Security is blockingaccess touplay_r164.dll. Also, if you have a third-party antivirus, add an exclusion to it as well.

Remember, do not add an exclusion if the game is downloaded from a non-official source unless you are absolutely certain that the files don’t pose any harm.

4. Reinstall the game or Ubisoft Connect (Uplay)

If that doesn’t work, you may also consider removingUbisoft Connectand then downloading it again from theofficial website. We recommend using aneffective software uninstallerto automatically clear any leftover files and Registry entries that may trigger issues during reinstall.

5. Disable Windows Security

After we encountered theuplay_r164.dllerror when playing the game for the first time, disablingWindows Securityor the active antivirus during installation did the trick. But make sure to re-enable it soon after. This also helps whenUplay can’t launch games.

Remember,missing DLLs in Windowsis a common issue. In the case of system DLLs, you could perform an in-place upgrade, and for third-party DLLs, reinstalling the program is the easiest fix!

For any queries or to share what worked for you, drop a comment below.

Uplay_r164.dll Not Found or Untrusted System File [Solved]#

How do I fix uplay_r164.dll error?#

1. Use a DLL repair tool#

2. Move the DLL to the game’s installation directory#

3. Make an exception for the game folder#

4. Reinstall the game or Ubisoft Connect (Uplay)#

5. Disable Windows Security#