To resolve the issue close any open erwin Data Modeler instance and then delete the the following registry entries:
HKEY_LOCAL_MACHINE\SOFTWARE\erwin
HKEY_CURRENT_USER\SOFTWARE\erwin
Once the registry entries have been deleted, erwin Data Modeler needs to be opened and relicensed
As some companies do not like their users to edit the Windows registry, the attached batch script can be used which needs to be started using the Run as administrator option
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