title: How to really (re)install OpenCL in Windows 10 for Nvidia
body: <p>After upgrading from AMD card to Nvidia 3060ti, opencl stopped working.</p>
  <p>Investigating the issue, I have found that vendor's specific opencl library has to be registred in in HKEY_LOCAL_MACHINE\SOFTWARE\Khronos by driver's installation, but that never happened.</p>
  <p>Any advice on how to make it work? I have tried reinstalling drivers, cleaning drivers, reinstalling CUDA SDK, probably anything except reinstalling Windows....</p>
  <p>Alternatively, maybe if I knew what is supposed to be in the registry, I could fill these values manually... (but I do not..)</p>