Re-installed ScreenConnection Client issue

Error "Installation cannot continue. There is a later version of this product installed. Please manually uninstall the existing version if you wish to install this version."

I accidentally click end on the client so I physically go to the client and uninstall SC. After un-install restart the computer and couldn't reinstall again. The error above pop on the screen when I tried to re-install again. Where can manually remove the existing SC? Help.

Thanks