The OPenCL.dll file may be missing from your Windows when running any program. Programs like NiceHashMiner used to mine Bitcoin and other cryptocurrencies need this file in order to identify all mining devices such as CPUs and Graphics Cards. If you get the Windows error saying : “this program cannot start because the OPenCL.dll is missing”, just download the file here to fix the error.
Download this file and paste it into the System32 folder. File tested and virus free.
Zip file, just unzip.