Please follow the instructions in this Thread (Reply number 6 and 7) and check if you are able to run the McAfee Removal tool. Since the device is not Enrolled it should be easier to remove the Application.
If you find any difficulties performing the steps feel free to call Tech Support from this link.
I see that you were advised to run the ESU tool to know the status of the Anti-theft service on your computer. We haven't heard from you after that. Please let us know the current status of your issue.