What is OpenCL.dll?
The OpenCL.dll is a OpenCL Client DLL.
This file is part of Khronos OpenCL ICD. OpenCL.dll is developed by Khronos Group. It’s a system and hidden file. OpenCL.dll is usually located in the %PROGRAM_FILES% sub-folder and its usual size is 61,248 bytes.
And here is how to fix opencl.dll problems in Windows.