Remote Management Install Error Messages

Setup was unable to properly install service. Uninstall the existing service, and reinstall.
Service(s) not installed/started (local admin rights required).
Source file(s) missing. Please reinstall ZENworks on server.
Setup unable to continue because source file(s) missing. Reinstall ZENworks on the server.
Failed to add to registry.
Failed to install optimization driver.
Failed to start agent.