We had Nintex installed in our 2013 Standard farm. After uninstall, I am getting errors on event logs
EVENT ID 6644
Source: SharePoint Foundation (Microsoft-SharePoint Products-SharePoint Foundation)
Event manager error: Could not load file or assembly 'Nintex.Workflow, Version=188.8.131.52, Culture=neutral, PublicKeyToken=913f6bae0ca5ae12' or one of its dependencies. The system cannot find the file specified.
How to clean?