Do you have admin rights to the computer?
What is the OS and Version that you are running?
What is at least the name of the remove parental control software is in use on it, that you want removed?
If you are the original poster (OP) and your issue is solved, please remember to click the "Solution?" button so that others can more easily find it. If anyone has been helpful to you, please show your appreciation by clicking the "Kudos" button.