I would assume you have anti theft or family protection installed as a trial. MCPR does not remove these. At least this my thought. Best to call support in your country and ask that they assist you as anti theft removal needs more than we volunteers to help.
I have pinged a senior tech as well for his review.
We need to check if McAfee Anti Theft is enrolled on your machine. Please run the below ESU tool as an Administrator and post back the Result.
The ESU tool can be downloaded from this link
For more info on how to use this utility click on this link
You will see an output like this..!
Post back the Enrollment code to proceed further...!