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Fixing a failing ZeissPy installation (Ordinal242/MKL-load-failed error)

In case your ZeissPy installation is failing due to an Ordinal242/MKL-load-failed error, the reason might be that you have some 3rd-Party application installed which modified the System32 folder. During the installation, a warning message will be displayed and inform you about dlls that are in the System32 folder. For a potential solution, take the following steps:

  1. Remove files from the System32 folder.
  2. Set a new environment variable

Removing files from the System32 folder

  1. Open the Windows File Explorer.
  2. Go to C:\Windows\System32.
  3. Search for any MKL- or libiomp related files and rename them by adding a .bak to the filename.
  4. Observe if any other software application breaks.
  5. If an application fails, try to move the DLL files alongside the .exe of the breaking software to another folder. If it works again, you can keep things in the moved state.
  6. Check whether the error is gone and ZeissPy can be installed.

If this does not solve the problem, you can also try Setting a new environment variable.

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