I recently had to install something to allow a tech agent free reign on my Win 8 Pro Home PC. The tech agent was courteous and professional and I have reasonable faith in her/him; however, I must be prudent when protecting my home PC.
What do I need to do that make 100% sure that the tech agent or an associate of the same company can never remote into my PC again? I have unchecked "Allow Remote Assistance connection to this computer" in Control Panel/System Properties. Also, I have a DLink 2540B external Firewall/Router but I'm not sure how to block the appropriate ports.
NOTE: This is nothing against the tech agent or her/his company. I'm just paranoid...