Are you signed in to Windows as a user with Administrative authority?
Yes, and it still does not seem to be working.
That's why I'm confused
Well you could try running th Virtual technician first to see if it fixes it, then try removal.
Or simply use the MCPR cleanup tool listed under Useful Links at the top of this page.
The only problem with only using that is that the online account wont be decremented, which can be sorted out later on your account page or by a phone call to Customer Service (or Online Chat) - also linked above.