Hi Bau, if you can't remove Client Connect Ltd. adware using Control Panel you could try using third party tools to assist you in this task. (Before using these tools you might want to check if you have logged on your operating system as administrator). You could try using:

CCleaner
Download, install and run CCleaner. After launching the program select "Tools". In the uninstall programs list select the program you want to uninstall and click the "Run Uninstaller" button.

Revo Uninstaller
Download, install and run Revo Uninstaller. After launching the program select the program you want to uninstall from the list and click on the "uninstall" button.

IObit uninstaller
Download, install and run IObit Uninstaller. After launching the program select the program you want to uninstall from the list and click on the "uninstall" button.

PS. Adware created by Client Connect Ltd. (Search Protect) causes browser redirects to trovi.com website, don't forget to reset your Internet browser settings to avoid browser redirect issues. https://www.pcrisk.com/removal-guides/7518-trovi-redirect

I am getting the same notice-insufficient access- i am the only user (admin) so i installed ccleaner- it still says error:5-access is denied. PLEASE HELP!