How to Fix OpenCL.dll Missing or Not Found Errors

About OpenCL.dll Missing Error

OpenCL.dll is called OpenCL Client DLL. It is a part of OpenCL ICD (Installable Client Driver) program which is developed by Khronos Grouop.

OpenCl.dll is an important file needed by plenty of applications or games. If OpenCL.dll is missing, you might experience various problems while using these programs, and even get an error while trying to launch your computer.

You might get various error messages when OpenCL.dll missing error occurs, and here are some common ones:

Don’t worry. This error is easy to fix. You can feel free to try these fixes listed below.

Fix 1: Copy OpenCL.Dll File from Another PC

The most direct method to fix DLL file missing error is copying the missing file from another trusted resource. But you have to make sure the computer is of the same version as yours.

If you are using 32-bit version of Windows, copy from and paste to both C:\Windows\System32 directory. If you are using 64-bit version, the OpenCL.dll should be in the path of C:\Windows\SysWOW64.

After you get the new OpenCL file, you need to register it. Just follow the steps below to complete the operation.

Now, you can check if OpenCL.dll not found error is fixed.

Actually, the OpenCL.dll file is related to the graphics card. If your graphics card driver is outdated, you might receive OpenCL.dll missing error as well. Here’s how to update your driver.

Step 1: Press Windows + X to open Start menu, and choose Device Manager to open it.

Step 3: When you get a pop-up window, choose Search automatically for updated driver software to continue.

Then, you just need to follow the onscreen prompts to finish the process.

Fix 3: Reinstall Graphics Card Driver

If OpenCL.dll issue still exists after updating graphic driver, you can also try reinstalling them.

Step 3: After uninstalling your graphics card drivers, restart your computer. Your Windows will check and reinstall the missing driver automatically.

Now, the OpenCL.dll missing error should have been resolved if it is caused by your graphics card drivers.

Fix 4: Reinstall the Problematic Program

If you receive OpenCL.dll not found error only when you are trying to launch a certain program, you can do as the error message indicates: Try reinstalling the program to fix the problem.

Step 1: Open Run dialog, input appwiz.cpl and click OK.

Step 2: Select the program that is giving the error and click Uninstall button.

Step 3: Click Yes to confirm the uninstallation.

Step 4: Restart your computer and reinstall the program.

Now, you should be able to launch this program without receiving OpenCL.dll error.

The OpenCL.dll missing might be a bug of your Windows computer. So, you can try updating your Windows to the latest version to fix this problem.

Step 3: Click Check for updates from the right pane.

Then, you Windows will check and download the available updates. You need to restart your computer to install these updates.

Fix 6: Use Windows ISO File

If you have Windows 10 Image file ( ISO file) of the exact build you are using, there is a more advanced solution for you.

Step 1: In Run window, input cmd and press Ctrl + Shift + Enter to open Command Prompt as administrator.

Step 4: Now, run DISM command and don’t forget to press Enter: Dism /Online /Cleanup-Image /RestoreHealth /Source:C:WIMWindows /LimitAccess

After that, restart your computer and check if OpenCL.dll not found issue has been removed.

Alternative Methods

According to the reports of users on the forum, there are some other useful methods to fix OpenCL error. If all the solutions introduced above fail to fix the error, you can try the following recommended ways.

Originally published at https://www.partitionwizard.com on January 19, 2020.